Just tried to update my signature only to be told by the site that it won't do it as my username (which hasn't changed) contains 'offensive words'.

Please can you update your filters to realise that basscl is not an offensive username and doesn't contain offensive words. It's the shorthand version of Bass Clarinet that is used in music scores. I'm particularly annoyed as why was it allowed 15 months ago when you enforced username changes if it's now not allowed.
Rather annoyed as it means I can't change anything on my profile unless I change my username which I don't want to do.

Thanks