Are you trying to suggest something? You're posting in the suggestions section so I'm not sure if you're trying to suggest we make it bannable or what. Moving to the correct location.
What Im trying to provide is spawntrapping evidence, which ruins the game. Sorry that I posted in suggestions, I'll repost in ban reports
This is annoying indeed. But it's the game. You need to protect your spawn from people doing this. I could probably see this being against the rules (Maybe) In the future, under 'Gem boosting.' But until then, or even if it does become a rule (Doubt it) You'll have to deal with it.
I haven't ever experienced this, but if I were to, I probably would not be happy. But I don't think it should be banned. It's a way of playing. I do think that there should be an invincibility period on respawn, though.