I don't really see the value or appeal of this. There are tons of free forums already out there, and if a group need a forum only temporarily, they're probably more likely to go with something free. If the forum is set up for an express purpose, like event planning, then most of the users will know when that purpose has ended and the forum is no longer needed. Sure, it may look like a waste of space to passerbys, but it doesn't really harm anything either.

I think the people let die the forum anyway.

This sounds more like a good add-on to an existing forum site than something to start an entirely new one with. I just don't see this being enough of a driving factor to generate customers and make any significant amount of money.

i do not under stand your market

lolz.... ignorable forum?

I think this idea is valuable to existing services, but not a basis for yet another new service.

Sorry, only two stars. Forums are useful because they are great for future reference. When pruning the data after a month the forums will lose their advantage over regular e-mail discussions. Also, I think the forum market has been satisfied quite some years ago.

Good luck with your ideas though!

The forum host probably also wants to keep the forum even if no one is posting because that is their net for web searches. If information was important enough to write down in the first place, it might serve a future purpose.

There are hundreds of free forum services like this one. search remotely hosted forums

this is not necessary no one will pay money for a free service

I think this is a good idea, for the same reasons that you suggest - many forums are used for a short time and then allowed to stagnate.

However, as others have said, with so many free forum hosts out there, many of them allowing almost infinitely customisable forum features, there's not reason for people NOT to do that! You'll have to come up with some improvement or some way to persuade people to use your service, and that could be the hard bit...

There already enough free ways to make your own forums!

I agree with the general tone of the comments above.

However, your idea has a spark of creativity in it that you could perhaps amplify to repackage as something more exciting.

Forum as event. Promote a time-limited forum, particularly on a burning question, and with some goal. It could be anything from a 48 hour on-line party to a serious political debate with moderators and a position paper as an outcome.

If you had a selection of special forums with look and feel different from the norm, then users from one or more established forum could participate in the "event" forum and know that it was something different from the normal day to day chat.

Your business could be providing the templates for the GUI, or it could extend past that into actual on-line event organizing, arranging speakers / moderators / facilitators / rapporteurs - anything, really.

ok ok...dispose this!