Block a user from a website in ASP.NET
<p>Beside IP blocking and probably using a cookie (if the user changes the IP but doesn't remove the cookie, the new IP is added to the banned list, so the IP has to be changed and the cookie has to be removed together to access the site), is there any tricks one can use to block an annoying user from a website, I know that nothing will work with a savvy user but I'm trying to make it harder for the less savvy ones, any suggestions?</p>

<p>Edit: I already have registration in my website, the point is that this is useless to stop determined users (they can simply create other accounts).</p>

<p>@rifferte,
Actually I'm already building a moderation section where moderators can remove posts and suspend members, also members can report abuse and spam, I'm not trying to make this impossible, simply there's no way to do this, I'm just trying to get rid of the less savvy ones (the majority), and not forever, I'm planning to block them for a certain period of time (probably a couple of days or something like that).</p>
