Sometimes new users are answering multiple questions in a short period of time but, as is often the case with new users, the quality is low (formatting, research, lack of good sources) or information is just incorrect. There is one recently arrived user with multiple low answers like this, they have been directed to the help pages by several users across their questions and been asked for improvements, yet these improvements seem to not be forthcoming.
Is there anyway we can block an account from posting new answers in these cases? I think just a very short timeout (a few hours) with a message to consult the help pages about the quality of answers and to look around the site at other answers that are well upvoted (perhaps give a link to a page of answers awarded the Nice Answer badge) so they can see what sort of standard is expected. However, I think that this would be quite an extreme treatment, something like a time-out should only be used VERY occasionally, we do not want to deter new users.
Potentially better softer solutions:
Perhaps new users should have a limit on the number/rate of answers they can post, so they can get used to the way biology SE works before going on answering marathons.
Perhaps answers from new users (for example; their first ten answers, answers in the first weeks, or answers from people with less than a certain amount of upvoted/accepted answers to their name - I specify this because I don't think rep is a particularly useful blocker, you get 100 just for being registered to multiple SE sites) aren't posted publicly until peer-reviewed.
a note.. I'm getting quite fed up with having to explain to people that answers should be of a certain quality (see how a good answer is described in the help pages) and just getting resistance and defensiveness in return. I'm seriously considering giving up bioSE because of the issue. If more experienced users don't point out these issues of quality it will just end up being full of nonsense, opinions, guesses, and misinformation like Yahoo answers!