I can definitely understand tipping based on the level of service. But I’m not gonna go out my way not to tip either
Exactly. The level of service may make a difference. I always tip at least 20% (because I'm not a bytch), but if the service was terrible, I'd reconsider.
It's a choice to go out and eat. You know that servers rely on tips (whether you agree they should be paid more or not is irrelevant here), so tip when you go out. I've been fortunate to make a great living right now, but I've been busboy and server in a restaurant, so I'll always tip.
at people tipping a server more than 20% because they just did the bare minimum.
A lot of you cheap muphukas better NOT be frequenting the same dining establishments more than once, because I promise you will be getting that special recipe on subsequent meals. 
