Everyone is diffrent. Nothing was to "harsh" if MonsteR felt offended by that, or if he felt like the server was offended by that.
People have other views of baning for swearing. Some admins don't care if somone swears thrugh the mic, and some do have a problem.
Swearing is ok. You get banned but unbanned again. But banevading while knowing the rules I never actually liked that.
You felt like your ban was "unfair" then you might of talk to the guy who banned you. Or even do a unban request and talk here about that ban.
f.e. If somone aimbot's in the server, do you start wallhacking, as it's unfair that he is using it?. No exactly

Too much non sense in this what Im writting, might be I know

.
I support second chances so I support you.
Good Luck! I'm pretty sure this wont happen ever again if he gets unbanned. =)