This funniness only affects market orders, right? I reckon most retail orders are market orders, just wondering if I understand correctly. If I place a limit order, then I don’t have to worry about the $5 I saved on a $0 fee transaction being made up elsewhere, although I suppose the tradeoff is that my order may not be filled at all.

try to sneakily make me register passcodes

Can you expand on this? I’m not sure what this means. Is it like instead of a full fledged password, just a four digit PIN or something? Thanks.