It seems you can get upvoted for no apparent reason :)

• ... and enjoy your moment in the sun for about 10 minutes. – Scortchi - Reinstate Monica Mar 27 '17 at 15:10
• Some people want the voting badges so much that they vote indiscriminately for the maximum (40 votes) each day until they reach 600 votes, then stop. I believe we have such a user operating right now. I haven't tried to track them down--it's not worthwhile. In the past, complaints to the SE powers have gotten no response, so evidently this behavior is tolerated. – whuber Mar 27 '17 at 15:20
• @whuber It's a pitty that there is no symphatizer badge for users with high number of upvotes for high-entropy answers... – Tim Mar 27 '17 at 15:24
• To answer the question in the title--no, of course not. I'm sure there's a correlation, e.g. if all I knew about two answers is that one is +20 and the other is -2, my best guess would be that the +20 is a better answer, but I think we've all seen plenty of answers of a low quality answer getting upvotes and high quality answers getting few upvotes...There are many possible reasons... Lack of understanding by the voter(s), voting score "momentum", and the popularity (or non-popularity) of the poster most likely all play a role. It's possible that trolls play a role too, as whuber indicates. – GoF_Logistic Mar 27 '17 at 17:47
• Yeah, this nonsense happens. I've seen a number of cases recently where posts that should in no way have had upvotes got one within minutes - or even seconds - of being posted. – Glen_b Mar 27 '17 at 21:19
• I don't think this is really a duplicate. The linked question is about how answerers should be evaluated (presumably across all their answers), this question is just about the narrower issue of whether votes on a given answer correspond to answer quality. They are clearly related, but I don't think this needs to be closed. I'm voting to leave open. – gung - Reinstate Monica Mar 28 '17 at 12:33
• Tim, @Andre, I changed the title of this post, trying to match it to how I understood the main issue. Tim, your question body does not contain any answers so feel free to edit the title again if you feel that I did not capture your intention. Note that a question on Meta has to be a question. – amoeba Mar 28 '17 at 15:34
• I can't see the history of this. A benign hypothesis is that it once made sense and was upvoted accordingly but then the OP decided to withdraw it but did not know how to delete it, so scribbled over it. We've heard less benign guesses. – Nick Cox Mar 28 '17 at 16:57
• @NickCox There is a way to see the history, so it's easy to reject your benign hypothesis. See stats.stackexchange.com/posts/270116/revisions or even stats.stackexchange.com/posts/270116/timeline. – amoeba Mar 28 '17 at 17:34
• @Amoeba I didn't see that (and don't know why, as I've looked at edit histories before). As my suggestion might be an answer to other cases, I would want to give a little push to the principle that we shouldn't assume the worst explanation without explicit evidence. – Nick Cox Mar 28 '17 at 17:39
• @NickCox Sure. I wanted to share these links because they are not easy to find: the second one (with timeline) is, as far as I know, an undocumented feature in a sense that there is no way to find such timeline pages using the site navigation; one has to know the URL and type it manually. I discovered it only recently. The first link (with revisions) is easy to find once a post was edited at least once, but if a post has never been edited then this link is normally not displayed. – amoeba Mar 28 '17 at 19:21
• There's a possibility that Nick is right - it could happen that someone posts something more typical, it's upvoted but then vandalized by the OP all within the first few minutes (inside the time window when it doesn't count as a new edit). I didn't check the timeline but if the vote came within a few minutes of the post. that might have been the case. – Glen_b Mar 28 '17 at 22:11
• I can see not downvoting because it would be a waste of time. Giving an upvote doesn't make sense to me. What would the OP be thinking even to post such a question? – Michael R. Chernick Apr 3 '17 at 20:03