I hear you, Swale.

The most annoying one for me is the use of super as an adverb, as in 'I'm super happy' or 'it's super exciting'.

It's grammatically wrong. Super is an adjective, not an adverb. You wouldn't say 'I'm good happy', so why is 'I'm super happy' OK? Yet people use it all the time, in both speech and writing (at least where I work).