>>295928276
>There's no cost of keeping someone you don't interact with on your friends list
Polluting the enormity of your friends list when scrolling through to find people is one. If there's a bunch of people you never join on, then they only serve to pollute the list of people you do join off of.

That said,
>unfriend person
>they IMMEDIATELY confront you
>"Quick, how do I word politely that you're an autist nobody enjoys the company of?"
The more retarded people are, the less self-aware they get, it's like a law of nature. Consider your own behavior for even a minute.