I'm guilty of of this unfortunately. I try to be civil, but sometimes it just gets really tiresome dealing with the same handful of trolls following you around and sealioning into your every thread.
I try to be reciprocal and interact in a civil way with people if they're civil themselves. I just don't have the patience dealing with people calling me a tankie, propagandist, or whatever.
I did start just blocking these trolls and that's probably the best solution. Out of sight and out of mind.