system
A chat on /r/wallstreetbets
human
It's partially because if you're trading options you're actually paying more in poor execution quality than you would commissions at IBKR or TW. Add to that the reliability and quality of the platform (when it works) and you're paying more for a shit platform with tons of bugs and shit reliability. 
  
 For small size stock trades, RH can make sense.  For options,  you're retarded (and not in a good way) to use them.

gpt
Started trading in early Sept and used RH, when bush died I went over my pdt and had to switch to a real broker. Yesterday was my 1st day using tw and i like it so far