i think some other methods to prove you are a human would be worth investigating. its very annoying to have to make 5 posts in order to be able to post new topics, and is very unconducive to new users, who likely have a pressing concern to post in order to get emulation working at all. Its not sensible to suggest that new users concerns have already been answered so they will not need to post new topics, for a few different reasons.
Consider the case of a new user who has an urgent new problem that belongs here, faced with the requirements currently in place on the forums, they are going to feel very isolated