I don't have enough reputation to comment on an answer which I believe has a few flaws, so I'm wondering what action I should take instead.

According to this page, I should comment when I want to:

  • Leave constructive criticism that guides the author in improving the post

And I shouldn't comment when I am:

  • Suggesting corrections that don't fundamentally change the meaning of the post; instead, make or suggest an edit;

I don't feel comfortable enough proposing an edit, and I do feel that the suggestions would change the answer fundamentally - yet wouldn't warrant it's own answer.

To give a bit of context, the answer I wanted to comment on is https://unix.stackexchange.com/a/388117/209558. I'm under the impression that the user can authenticate as root, however if they authenticate as a user they might need to be part of the group "lp". The only thing I have backing me up is the Arch Linux Wiki, so I don't feel quite comfortable outright suggesting an edit.

  • 2
    Glad you reached your 50 rep so quickly. Took me couple weeks to reach that point.
    – Alex
    Aug 25, 2017 at 18:15
  • Thanks! It took a bit of hanging around the new questions page, but I think it was worth it Aug 25, 2017 at 18:27
  • I think asking on here helped too. People read your question (it's on the Featured list), and then look up your posts, and upvote them if they think they're good-quality. :)
    – Alex
    Aug 25, 2017 at 18:29
  • Yeah for sure! I've had a few posts upvoted that are quite old. I don't care too much about the rep, but its a bit of a hassle if I can't contribute effectively Aug 25, 2017 at 18:55
  • 1
    Sorry, but xkcd.com/386 ;-)
    – Kusalananda Mod
    Aug 26, 2017 at 12:37
  • That's exactly what happened Aug 26, 2017 at 12:39

2 Answers 2


I'm afraid the only answer is "spend some time on the site, get 50 reputation points and then comment". The rep limit for commenting is really low, it only takes 5 upvotes on answers or ten on questions. That's not hard to reach if you want to take part in the site. Answer or ask a few questions and you'll get there in no time.

Once you do, you can comment freely.


An alternative to terdon's suggestion is writing your own answer. NOTE: Writing your own answer is NOT putting a comment as an answer. If one answer is inaccurate or has notable flaws, consider answering the question yourself.

  • 4
    just pointing out that the OP here had declared "...yet wouldn't warrant it's own answer"
    – Jeff Schaller Mod
    Aug 25, 2017 at 16:55

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