In regards to the filter

Is arsehole supposed to be filtered or was that missed accidently when the other 'arse' related words (including arse itself) were unfiltered?

My guess would be yes

Yes it was missed out or yes it's supposed to be filtered? ^_^

Yeh it's supposed to be filtered ;)

Probably :P

Yeah that one's used for offense as opposed to colloquialisms might as well leave it :)

No worries, thanks for the reply. :)