Also posts/comments that are off-topic or break server/community rules should be removed
This creates an echo chamber. If they break rules, that's a different story, but removing "off-topic" comments is too broad of a statement and could lead to mere disagreements/differing opinions being removed, which I don't agree with.
Edit - And I'm just getting around to the flood of spam posts, I'll add rules and clean it up. I am basically only on from 7am-6pm EST and most of this happened overnight.