I know about this, however i do not consider it to be that bad of a bug. I mean, you can just copy paste your post and post it once you are able to do it again. I do not consider it to be so important, that it would have to be fixed. Theymos and the mods are already way too busy with stuff.

If this is a problem for you, you could always buy the Copper membership for around 2mBTC. That way you can post alot more often (like once in a minute i think) and you get all of the same things thaet members do before gaining the needed amount of merit and activity