Suppose you see a question which is very interesting and you spend some time thinking about it, and you have something to say about it.
You start writing as an answer, because you have several points which are deep and useful. However they do not answer the question, but just act as possible flags for those who may want to approach the question later.
The topic for discussion here is what should be the norm about posting such answer as community wiki.
My thoughts go both ways.
Favoring CW: Well, no one gets reputation for comments. Even really really good comments that offer wonderful observation, furthermore if I'd see an answer with a very short observation I would flag it as "Not an answer" and hope to see it converted to a comment. Why should an answer posted as a very long comment should be subjected to a different treatment? Reputation is not something to be earned by comments. Rewards in the form of badges for the hard work are enough, if one seeks the "material gain" and if you have come to a complete answer you can post a new and complete answer altogether.
Against CW: Writing pointers can be as useful as writing an actual answer sometimes, as seen in some cases that a remark in the comment is actually more than a complete answer on its own. It can be a hard and demanding process to write a useful comment, and if it got too long, then you are certainly entitled to the reputation more than just the possible badges.
I would very much like to hear the community's voice about this, and whether or not we should start pushing towards CW in "this is a long comment" sort of answers.
(On that breath I would like to sound a minor protest against answers as comments by some users.)