>>337876534
Unfriending is of course looked down upon specially if there is no reason to unfriend.
It's impossible to befriend everyone with how little time we have but we can at least be acquaintances. Which unfriending kills or limits the potential of meeting again.

Honestly be choosy on who you add as friends. Take responsibility instead of accepting every friend request that goes your way than being too flaky on un-friending.
I only unfriend people who are actually malicious.