There is a reason Manacube is one of the only servers that doesn't have a swear filter (with some obvious exceptions). There is no reason to need to share your rage in chat, its not an impulsive move and typing does not relieve any frustration; swearing out loud does. The only reason people really swear in chat is to tell others that they failed a jump. If we had random people running their mouths anytime they fell, it would be terribly chaotic. Its not necessary, at that point it would just be spam, and more people wpuld be getting muted.
If you like swearing, be glad you can do it at all.