1. I got banned before by a friend who told on me on reddit that I had multiple account (using 2 separate comp) even tho, he didn't care till I reached his rank lol
Sadly he was the only person who knew about it.
2. I got banned years ago for using relax hack when it was new on the old AQN and osu! could check what your running in the background and take screenshot.
3. I once was evading and a top player of the country flag I was playing in, kept spectating and asking questions and i got banned few hours later. (wasn't even standard mode, I havn't played standard mode since my 1st ban lol)
4. I got banned for dual screening years ago too.
5. Got banned for sending email from wrong email and got called out for robbing my own account.
6. I once got a Osu!Supporter so mad at me in a big email fight he told me to never ever write and/or bother appealing again and I flipped him off at the last email.
7. got banned for being banned after they caught on to me also on a very very stupid way ( I went to a friends house and i had an account banned on the computer that i logged in on years back at the persons party when we where just fooling around 3 Am and got banned for logging in on it just to play while I was waiting for the microwave to finish something)
and theres more >_>