I am not able to upvote or accept answers to my questions on Mathematica SE. I am allegedly signed up, but have still the message "Finish signing up for your account" on the screen.

What shall I do?

  • @BigBadCat no it's not... well, it might be, but since the other one was "fixed", it's wrong to close this one as dupe. Those should be handled case-by-case, so we should let SE staff handle it. Commented Feb 26, 2018 at 9:36
  • Now I have used "Contact Us" link. Let's see if it helps.
    – drer
    Commented Feb 26, 2018 at 10:10
  • Did you validate your email address? Commented Feb 26, 2018 at 15:40
  • @Monica Cellio I do not remember this. Most probably I had already an account on math SE before I started using Mathematica SE. And the latter is the only SE page which does not recognize my signing up.
    – drer
    Commented Feb 26, 2018 at 15:54
  • Oh, you said Mathematica, not Mathematics (Math). I've heard that Math has additional requirements, which I speculate might include email validation, but I don't know anything about Mathematica. Sorry! However, your Mathematica account shows as unregistered, unlike your Math one, so maybe you used a different credential or email address? Commented Feb 26, 2018 at 15:55

1 Answer 1


Your account on Mathematica is unregistered, which means you can ask and answer but cannot vote. I thought this included not being able to accept answers, but this comment provides some counter-examples. So I don't know why you can't accept an answer, but this is why you can't upvote.

You do have a registered account on Math, though, so I would have expected your account to be registered automatically on new sites. It might not be if you used a different credential -- for example, if you logged in with Facebook on one site and Google on another. I think that if you used the same email address they're still all hooked up together in your network profile.

On your profile page on Mathematica, look for a link that says something like "register". If it's not on the main page, look in "edit settings". (Sorry, I don't remember exactly where it is and haven't created a new account to test with.)

  • hold on... unregistered accounts can't accept answers?
    – Cai
    Commented Feb 26, 2018 at 16:08
  • @Cai I thought they couldn't. Do you know of an example? (I know that unregistered users who came over from SE 1.0 can have acceptances, but I don't think new, unregistered users can.) Commented Feb 26, 2018 at 16:13
  • Couldn't figure out how to search for unregistered users for a min there.... user87505 and user105472
    – Cai
    Commented Feb 26, 2018 at 16:20
  • @Cai thanks! I'll edit. Commented Feb 26, 2018 at 16:24
  • You were right. I indeed is able to accept answers. I have no idea what I did wrong so that this did not work.
    – drer
    Commented Feb 26, 2018 at 17:09
  • @drer oh good; that's more consistent with what we know about unregistered accounts. (If this answer helped you, you know what to do. :-) ) Commented Feb 26, 2018 at 17:15
  • @Monica Cellio Actually I did not know what to do. :( But somebody has helped me. Obviously I had two accounts, and now they were merged together. Thus the advice to use the link "Contact Us" seems to be correct.
    – drer
    Commented Feb 26, 2018 at 17:57

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