I thought we might need some new subreddits on Reddit. What subreddits do you want to see get big?

Often there are subreddits, but someone looks, sees there are only 300 people and so they don't join. How about we increase the influx of useful subreddits!

I just quickly created r/WordOfToday so if many people join we could increase our vocabulary quickly and improve it.

Do you guys have any subreddits that might prove cool or interesting if only there were more people? Or any ideas/subreddits you want to see come to live?