You realize words are not always one thing, right? Good job putting your foot in your mouth smart guy.
https://www.google.com/amp/s/dictionary.cambridge.org/amp/british-grammar/pretty
Let's say you're not a liar. What are you accomplishing posting this dudes address? Who's the "plant" trying to help incite some potential event at this address, which as you've previously stated, is public information. So instead of inciting this shit on a forum why don't you go do it yourself?
You're not nearly as much of a linguistic expert as you think. Pretty, in this instance, is an adverb. Gay is an adjective.
Definition of adverb: a word or phrase that modifies or qualifies an adjective, verb, or other adverb or a word group, expressing a relation of place, time, circumstance, manner, cause, degree, etc. (e.g., gently, quite, then, there ).
Keep sticking your foot in your mouth.
Take your ass back to reddit smart guy.