"Rate limit exceeded"?

Sometimes I'd like to post comments more frequently than a single comment anywhere on the site once every two hours.

But I can't, because I get the error "Rate limit exceeded".

Is it possible to remove or at least significantly increase the limit site-wide for established users?

The things a bear has to do..

If there is a more appropriate place for this, I would appreciate having it moved there, or a link to the more appropriate area. Thanks!