The World Wide Web is very much like a cocktail party: You aren't sure who you'll meet, & drinking is optional.
In the realm of the Adult Webmaster, this is especially true. For like most parties, there are always the concerns of under-age attendees, party crashers (hackers), and those dreaded conservative neighbors who may call the cops.
Like any good host (or guest), we must be wise about our guest list ~ we should never tease minors or lure them into our festivities. We ought to do our best to not only be on the look out for the uninvited, but have plans in place in the event we do need to toss someone out as well as repair the damage done by such unwelcome guests. And we should do our best to make sure our party doesn't disturb our neighbors, or otherwise incite them into causing us legal problems. And if one angry person does make the call, we should have all our necessary papers at the ready (2257 etc), so that the interruption doesn't last long.