Here is a recent example. Can we get rid of automatic conversion of questions to CW?
TL;DR: This is an excellent suggestion -- one that I think there is sadly no chance of being implemented, alas. The only way to fix this is to rely upon our moderators to un-CW such questions (you'll have to flag it for their attention). I'd certainly hope our moderators would be glad to do that.
In more detail: I agree with you. I too would like to see automatic conversion to community wiki disabled. I think it's a lousy feature; it disincentives improvements to questions and answers.
Unfortunately it has been suggested previously on Meta.Stackoverflow many times over the past 4 years, and it looks very unlikely that it will be changed:
Apparently, the rationale given for the existing auto-CW-conversion behavior is that the site designers were worried that people would continually edit their question to bump it to the front page of the site. I personally don't think the current behavior is the best solution to that problem, but whatever: it's clear that the site developers have a different view, that they have thought about this, they do have reasons for the current behavior, and ultimately, this is unlikely to change (at least, not in the foreseeable future).
For now, no changes seem likely to come our way. Instead, the standard workaround seems to be: if you notice that a question/answer was auto-converted to CW inappropriately, flag it for a moderator (flag as "needs moderator attention"), and ask the moderator to please reverse the community wiki status. Moderators have that ability. Apparently, many moderators have stated that they do routinely grant these requests (absent concrete reasons not to), and it is considered legitimate to ask the moderators to do so. See, e.g.,
Unfortunately, you'll still lose any rep that was accumulated between when the answer was auto-converted to CW and when the moderator reverts the CW status.
My proposal: Our moderators should routinely and gladly grant such flag requests, as long as there has not been any signs of abuse. We should be grateful to anyone who takes the time to improve their questions or answers, as long as they're not abusing the feature to try to bump their question/answer to the front page. I don't think our moderators should refuse to grant such flags (e.g., on the basis that they're going to wait for this behavior to be changed -- as it's pretty clear this behavior is not going to be changed any time soon). That just penalizes people who put extra time and energy into improving their questions/answers.