Posting dirty butt warnings and bathing tips NEVER goes over well. The guys who need this info either are not on here, don''t care or don't feel they have a hygiene issue. In other words, it just gets everyone pissed at you...see all those posts below.
Now if you don't much like working with guys who have a few ED issues, then say so discretely on your website..and I did say discretely. Or if you happen to be with a guy like that and you're sore or tired, just say so, he will understand and give you a rest. These guys like the affection and intimacy and are very well aware that they might wear out a lady or two. Just be sensitive and you'd be surprised at how well that goes over.
I know I get pissed off when I see guys posting smelly vag threads...it does not reach the intended for the most part. And offering a shower helps and last but not least, if their undercarriage is still not clean no-one is going to make you do anything you don't want to do.