Following case: A solution is being suggested in an answer, the OP disqualifies the answer at some point as useless, *after* having tried it out be it a nice try or not.
The answer might have already been upvoted.

See [here](https://gaming.stackexchange.com/questions/11410/windows-7-age-of-empires-ii-works-but-not-quite/11411#11411) for an example.

The question is, can the answer be upvoted further, as in "nice try!", or would we let it be and let the nature do its genetic work?