Oh Lordy do I have a list for you!
• Bad grammar
• Getting into arguments with trolls
• Making pointless threads about TV shows no one but me watched (and literally being the only one posting in it)
• A good chunk of my post were one liners that contributed nothing to the topic at hand
• Replying to spam
• Being a attention wh***
• Sending friend requests to anyone without actually getting to know the person
• Posting in the competitive forums back in (5th gen 2011) with no knowledge of the metagame, using awful in-game sets and what not
• Getting into the debate forums with no clue what the hell I'm talking about
• I trolled a little bit (got into big trouble hehe)
• Bothering members through VM's when I know they want nothing to do with me.
And I think that's about it.