Dave, it was a mistake to post it in your sigtag. You did right to take it down. IMHO it's alright to have it in your profile as that is your "personal information".

Don't be overly sensitive about the criticism you have received. While you enjoy your writing, others will have their opinions about it and as long as you have links to it anywhere here or elsewhere that gives others the right to voice those opinions.

*Note: I know we are all fed up with the influx of asshats on the boards lately, so it's possible we all might be a little on edge. Just an observation.