No, there is no difference.
If the answer is wrong, doesn't work or whatever else in terms of not being helpful, it warrants a downvote.
Being set as community wiki, or even being old, is not a guard against a downvote.
There's nothing legally wrong with copying an answer wholesale, provided there's clear attribution. Content creators agreed to those guidelines when they posted on a Stack Exchange site. That said, I'm not sure that copying in other sites' answers is the best thing to do.
If a certain topic is acceptable at multiple Stack Exchange sites, there's a good ...
You no longer can, because everyone can edit your post when necessary and it isn't supposed to be used as a loophole to allow questions that would otherwise be off-topic.
Only moderators can manually change it to a community wiki if you insist on having it changed
Community Wiki (CW) posts are owned by the community. The main difference to normal posts is that:
You can freely edit a CW post with 100 reputation (not 2k)
Nobody gains or loses reputation from votes on CW posts.
You can get a list of CW questions by using the search operator wiki:yes.
Now, there's a difference between CW questions and answers. While ...
The various aspects of the question are well laid out and I completely agree with Ben N's answer. What I want to focus on is the relative "gravity" of the issues.
One set of issues relates to scope and fit, and the preferred style of handling this. That deserves careful consideration and discussion because it will be somewhat of a precedent.
The other is ...
This decision is entirely up to you. Making a post community wiki will result in the following:
A much lower reputation (100 instead of 2000) is needed to edit a community wiki post.
Voting on a community wiki post (up or down) does not affect any user's reputation.
This might make it easier for others to edit your answer, because it's now ...
Yes, bounties can be awarded to community wiki answers. The restriction on reputation gain applies only to voting. See this Meta post: Does bounty apply to a CW question?.
The thread linked in that Meta post was subsequently deleted (visible to 10K users). It had 5,472 views, the question had 34 upvotes, it received 62 answers, the accepted answer (and ...
I feel the right way to do something that might be to the 'letter' but not the spirit of the rules would have been to ask on meta first. This is one of those cases.
It sets a bad precedent both for our site and others - especially since the questions/answers are copies. While I appreciate the 'intent' the worst case scenario is someone less scrupulous ...
What happened was that you edited your question to include an answer. But answers belong underneath a question, not part of it.
As most users would have done, slhck♦ edited out the answer portion and posted it as an answer. Not wanting to accept any reputation on it, and that it was using text originally from the question, it was marked as community wiki.
The search box supports a variety of extra search terms such as wiki:yes ( or ":no") and is:question
This search will show you all the questions which are community wiki: https://superuser.com/search?tab=newest&q=wiki%3ayes%20is%3aquestion
On the search page on the right hand side near the top is an "Advanced search tips" link which will show you the ...
I fully agree that closing questions as duplicate from other site of stackexchange would be an easy solution.
Now let's discuss the situation in general when the question is a good quality one, it's on topic here, exact duplicate of another question on a different site and that one has a good answer, so when the only thing preventing marking as duplicate ...