What can come across as BM? I'm a pretty bad forsburn, but that doesn't stop me from pissing my opponent off every few matches. I'm 90% certain that it's not my playstyle. But I have a habit of wavedashing/wavelanding everywhere in between stocks, because it genuinely feels good to do so and it seems to keep my movement smooth.

I see nothing wrong with it, but I just played a kragg in exhibition who started BM'ing halfway through the set after he took one of my stocks. The matches had been even, and neither of us were spamming or camping. (until the last match where he camped me out and BM'ed me as much as he could. really not fun.) 

He's not the first player to do this, and it's starting to get to me. It happens almost every day. Am I doing something wrong, or do I just need to accept that I'm on the internet?