In short: this is a problem hurting new users, who don't really know how to handle it. Under a certain amount of reputation you are only allowed to insert 2 links in your post.
I admit, in lots of cases this could be overcome, but in reality relatively new users don't bother much to use these practices.
I suggest a hidden filter to allow the generally used example domains above the URL limit.
An other idea: these links do not have to be clickable at all.
An other other idea: links inside code block should not be subject of this limit. If a user wants to hide a link that can be copy-pasted to the url bar, he/she can do it anyway in 1000 ways.