Could you consider allocating a sequence number to an answer as it is posted, and displaying it. This way, we could see by gaps in the sequence where there were once contributions now banned/hidden. Often the removal of answers makes a question read oddly.
and what's wrong with making ABers look stupid? Good for the soul. And odd-reading threads are a useful challenge to the intellect. You think Sherlock Holmes found his leads neatly labelled 'Clue 1', 'Clue 2'?