First of all, thanks for this excellent module.
I found a problem if using node limit for a node type in which form block is used for submissions. If the limit has been reached (in my test case, a 1 per 60 second interval), the submitter is blocked from even viewing the page containing the node add form block (in my case, the front page). It redirects to the node/add page, with the error "You can't create more content of type xyz".
So it appears that node limit somehow is evaluating the limit if the add node form is even being viewed, prior to actually even submitting the form?
This is a bit of a show stopper with form blocks. It would be ideal if the evaluation and limit error message only happened when attempting to submit the form. Is this something that's possible?