Some users (usually new ones) will see an answer to a question similar to one that they have recently asked, then leave a comment along the lines of
'Please look at my question . . .'
Are such comments acceptable? I can imagine that in some instances, this may be an effective way to get a difficult question answered by one of a small number of users with the necessary knowledge to do so. However, most of the instances that I have encountered do not fall into this category. If such comments aren't welcome, what is the best way to deal with them?