How to fast blacklist spammers/goldsellers [Quick fix]

While SE completely forgot the blacklist option on the chat, I figured out this one (do not know if its already been told);

1. Right click name -> Send tell
2. It will now say 'Send tell [name]' in console (where [name] is the name of the person you want to BL)
3. Change that into;
   
   /blacklist add "[name]"
   
   (Quotes are needed)
4. Confirm, done :)

it's nice to have a quick fix, but can't this be better done through the UI?

could make a macro /blist add <r>

would blacklist the last person who /tell you

you still get a confirmation box asking if you're sure so there's no risk to blacklist a friend by mistake