Courtney hosted Smosh's Seriously Super Stupid Sleepover with Olivia Sui on the Smosh 2nd Channel, replacing Mari's former show Smosh Pit Weekly from September 2015 to May 2017. Miller says that Vine was the reason she was able to get the job with Smosh. Courtney began posting Vine videos in the video service's first year, 2013, and stopped by its shutdown, in 2016.
On July 28, 2017, it was announced in the video What's going on with Smosh?! that she and Olivia Sui would again be hosting a series together, this time called Whoa! Nature Show. The show premired on the 16th of the next month.
- Courtney had a boyfriend who is a former Viner by the name of Wahlid. He could sometimes be seen on her Instagram and Snapchat. They seem to have broken up around late May 2018.
- Courtney is stated to have taken part in a fight in eighth grade.
- She dropped out of college and had to work in a pharmacy before she quit and went to a film internship, before Olivia brought her in for the Smosh audition.
- Courtney once accidentally posted a Snapchat video with her fully naked butt in the reflection of the mirror. Many people have screenshotted and shared that moment.
- Courtney is also a talented makeup FX artist, having done work on Logan Paul for a Soulja Boy music video once.
- Courtney has been speculated to have grown up in a Mormon family or have some Mormon background, something Courtney confirmed to be true in November 2018. Reasons for fans to believe this in the past have included the fact that she has six siblings and her mother lives with her partner in Utah. Courtney has also said that she had a very sheltered upbringing from her mom and was only allowed to watch the Animal Planet channel as a child.
- Her parents are divorced, though she has rarely spoken about it. (Reference Needed)
- Courtney took up track and pole vaulting in high school. (Reference Needed)
- In "Smosh Secret Revealed", she said in middle school her female friends would always want to practice lesbian kissing with her at sleepovers. However, she believes boys kissed better than girls. 
- She stated in NOAH SOAKS COURTNEY | 2 TRUTHS 1 LIE WATER CHALLENGE that she failed her first driving test. Also, she says she owned 10 pairs of stolen Vans at one time. (Reference Needed)
- Courtney prefers Marvel over DC but is a huge Wonder Woman fan. She has a Wonder Woman poster on her wall which can be spotted in her personal vlogs.
- Courtney loves soy sauce.
- Courtney is likely not a fan of scary movies. (Reference Needed)
- She is a big Rick and Morty fan. (Reference Needed)
- Shayne and Courtney both had their Smosh audition at the same time.
- Courtney thinks her El Smosh dub is very accurate. (Reference Needed)
- Courtney played the character Food Girl on Put it in My Mouth.
- Courtney voiced Flan during the Food Battle X voting.
- She and Olivia have kissed many times and refer to each other as 'baes'. They often joke about scissoring and fantasizing about each other.(Reference Needed)
- She and Shayne, as well as her and Olivia, have been shipped by many of their fans. They are referred to as "Shourtney/Shayney" and "Courtivia." (Reference Needed)
- As of March 2017, it was revealed that she is roommates with Wes.
- In a Q&A on her personal channel she is asked if Smosh cast members are allowed to have romantic relations with each other. Courtney says that it is unlikely that any Smosh member would do this due to them treating themselves as brothers and sisters though they do like to flirt for fun.
- She has accidentally called Shayne "babe" in a Livestream on Smosh Games Alliance "MARIO KART 8 w/ SMOSH COURTNEY AND SHAYNE (SGA Live).
- She has kissed all the members in the Smosh Squad, as well as Ian. (Reference Needed)
- She has a dog named Jango. (Reference Needed)
- Courtney is a talented artist. (Reference Needed)
- Her YouTube fandom is referred to as "Ass Cheek Valley", after Courtney's playful love of butts. (Reference Needed)
- Before her Smosh YouTube channel, Courtney originally had a YouTube channel of her own called "cmpinkluvr".
- Courtney wears glasses. She rarely wears them when on camera with Smosh or Smosh Games, or her personal video blogs.
- In the 2016 US presidential election, Courtney supported and voted for Senator Bernie Sanders in the Democratic primaries, and was very disappointed when he didn't receive the Democratic Party nomination. She has said multiple amounts of that she does not support Donald Trump's opinions.
- Courtney is left-handed, as she is seen writing with the pen in her left hand in EVERY DOG EVER.
- Courtney "hoos" a lot like an owl. (Reference Needed)
- She loves to make impressions of people, one being a general "douche". (Reference Needed)
- Courtney has described herself as extremely ticklish in multiple 2 Truths 1 Lie episodes. (Reference Needed)
- ↑ CRAZY SMORES W/ IAN (Smosh Summer Games)
- ↑ HOW TO GET A GIRLFRIEND (The Show w/ No Name)- YouTube
- ↑ NEVER HAVE I EVER W/ KEITH AND NOAH- YouTube
- ↑ WE REACT TO OUR OLD VIDEOS (Squad Vlogs) - YouTube
- ↑ Courtney and Shayne Open Up - 2 TRUTHS ONE LIE - YouTube
- ↑ https://www.youtube.com/watch?v=q5C1CBpnlow SMOSH SECRETS REVEALED (Smosh Summer Games)] - YouTube]
- ↑ CRAZY SMORES W/ IAN (Smosh Summer Games) - YouTube
- ↑ EXTREME CLOTHES SWAP CHALLENGE (Squad Vlogs) - YouTube