I often see comments on a highly rated or accepted answer that looks something like
For an awesome solution to this problem see
Then when I click on the link, it brings me to another answer on the same page / question
Here's my buggy downvoted answer:
Blah blah blah blah
If this user's solution was really that good, would he have to self promote? Wouldn't his answer just be ranked higher?
Should these type of comments be flagged as not constructive? Should they be flagged at all?