New users with less than 10 reputation can only add one link per post. As we want to encourage users to cite their claims, this restriction can be counterproductive sometimes.
It would be nice if that part of the new user restrictions could be removed on Skeptics.
As an example for the irritation this feature causes see this answer, the author posted most of the answer on her blog, as she had too many links in her answer.
I don't really see the point of this restriction, spam is spam, no matter if there is one link to the spammer's site, or 10 links. It doesn't prevent the spammers from spamming, and even as a damage-control mechanism it really doesn't do anything useful.
We expect users to cite their answers here, the kind of answer we really like to see here just can't be done with two links. We tell the users at many points that they should add cites for their claims, and when they do it they are rewarded by the notice that they have inserted too many links.
This restriction is very hostile on Skeptics as a good answer here almost always needs more than 1 or 2 links. This leads to us commenting on first answers with a request for more references, which the users cannot easily comply until they get upvotes, giving them a bad first impression of our site. But if people vote correctly, they won't get upvotes because they are missing important references.
Of course they could insert the references unlinked, but that leads to more work as another user has to edit the post, and it is also unreasonable to expect a new user to know how to work around those restrictions.