It's night shift, it is typical for night shift to have a high degree of off-topic posts and\or tits and banter. Many of us in US TZ are very tired and unwinding. This is part of the board culture. Since you seem to be new here, it's best if you try to learn it if you plan to stay.
Also if you have time to demand proofs, you have time to dig for them and provide them yourself.
Also please don't call people shills for posting tits. That makes YOU look like the shill and has a high chance of getting you made fun of and\or filtered yourself.