Captionista 

Someone whos puts captions on YouTube videos

I wonder how many captionistas there are on YouTube.

Captionista by TUHUS June 30, 2021

cautionista 

Someone overwhelmed by caution to their detriment. A crazy making person that cautions you about everything you do. Obsessive cautioner.

Once they had children her husband became a cautionista so she filed for divorce and custody of the kids, which he cautioned her against.

cautionista by markit November 26, 2013

Cautionistic 

Cau-tion-istic/ˈkôSH(ə)n'istik
Adj.

1. a person whom is "cautiously unoptimistic" or both mildly optimistic and greatly pessimistic.

2. cautious to a fault.

Recognizing that he is growing older, he became cautionistic about the future.

Cautionistic by Lux Madison October 21, 2020

Cautionist 

A person who exhibits excess need to fix the outcome that may occur that could be danger.

I left my drink on the roof and didn't move it because I'm not a big cautionist.

Cautionist by Lenny H. August 16, 2021