I don't go here 

1. "I don't usually participate in this"

2. "I'm not part of this subculture/community"
3. (of a fanwork of some sort) "I'm not part of the fandom for this"

Generally paired with a "but" afterwards, to illustrate why the speaker is 'here' anyway.

(Usage note: I've only seen it used to describe the speaker. The first person form is the one most commonly used, but "doesn't go here" gets a very few hits on Twitter from people describing themselves in third person. There are some other third person results for the phrase, but it coincides with a Mean Girls quote, so I can't be sure whether this is the intended usage or not.)

"I don't go here, but the composition of your art is fucking amazing, holy shit."
"I don't go here, but I felt like I had to step in and clarify some things."
"I don't go here, but this is funny as hell."

I don't go here by cryptologicalMystic April 25, 2022

I don’t go here

A phrase used online usually in fandom spaces by someone who isn’t a fan of the interest at hand, as in “This is not the part of the internet that I usually lurk around” or “This is not where I usually go (on the internet)”

Tweet appreciating a scene in a show

Person: I don’t go here but I love this clip so much!

I don’t go here by nadastic February 22, 2024

you don't even go here 

A saying used mainly at Woods Lake, in the Lake Counrty District of British Columbia, Canada. The term is used to shut someone down who thinks they know what's going on. The term is very similar to check your life.

Bob - "Joe, I'm tellin you man, that's how it is."

Joe - "Hey Bob, you don't even go here."

you don't even go here by Jamie Biggs May 6, 2006