I'm with you on the return of the tokens, at this point, due to the ex post facto application of the rules.
IF we allowed folks to declare 'crimes' after the fact, fewer people would be outside the prison system.
I am against vote buying in general, including paying for delegations, I don't really see a difference, but had the rules been published prior to your post then posting in violation of them would signify your willingness to lose them.
I don't know what helios sells for, but 30 tokens to make one's self look fair and above board seems a small price to pay, to me.