You use those commands on a dime though, players may have to switch between party chat and regular chat pretty quickly, and /fr is for quick replying, you'd have to do that multiple times and is actually useful.
I doubt you'd need to spare the extra 3 seconds of typing /ignore add <player> being that you won't really be using it every minute or that often at all.
It seems like an unnecessary change, I think keeping commands simple and only commands that require it get a shortened version of their full command would be a better idea.
