(B) similar expressions from other instances aren't drowned out.
Some other instances are so much bigger than ours though. The "drowning out" will likely come the other way.
I don't have time to go through and find it right now but somewhere in my comments is screenshots of the difference in voting patterns on a comment thread (it happened to be one where someone was saying kbin is mostly trolls, so it was polarizing).
Kbin had voted in a completely different way to the lemmy, but because they were so much bigger than us, the aggregate would have looked like lemmy was the consensus.
Part of the appeal of an instance for me is its culture. It's hard to develop that when we risk being drowned out.