Several people, whom I won’t name, have taken to commenting more often than is suggested by Da Roolz. Let me reiterate the relevant one: Rool #9:
Try not to dominate threads, particularly in a one-on-one argument. I’ve found that those are rarely informative, and the participants never reach agreement. A good guideline is that if your comments constitute over 10% of the comments on a thread, you’re posting too much.
This is a guideline, not a hard-and-fast dictum, but be aware that comments should be informative, advance the discussion, and aren’t there just so you can tell the world that you exist. Comments that say “+1” are particularly egregious because they say nothing more than “I agree,” evincing a laziness that can’t even produce those two words! (And even “I agree” is not that useful.)
