The majority of my maps will only have one difficulty. I make maps that I think are fun to dance to. They probably won't be a challenge for most people on this site, but I hope someone will enjoy them. I'm not into complex patterns or lots of walls/barriers, and I hate bombs. My mapping philosophy is to try to find the dominant beat and play to that, using the flow to guide me.
If you hate my songs or my maps ¯_(ツ)_/¯
I'm a lefty, but I try to keep my maps balanced. That said, if you feel like they're made for a lefty, just change it in the game settings.