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I found a question similar to what I would ask. I wanted to add subquestion as before others did in grey (dimmed), but I didn't find a way.

In some questions I saw, that there is a posibility to "add comment". Why in some questions such posibility is possible and in some not?

UPD: problems with UTF-8 encoding in PHP

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If you could post links to the questions it would help enormously. – ChrisF Jun 13 '10 at 14:39

You need 50 reputation to comment on questions (that you did not ask yourself) on Stack Overflow, but just 1 to do the same here at Meta. See also How does the comment system and comments work?

Or, without any specific examples, maybe you're referring to migrated questions? Those (and other locked questions) cannot be commented on.

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Understood. Thank you for clarifying it. How could I gain reputation? Will I be correct if I assume, that by good answers to already opened question? – Eugene Jun 13 '10 at 15:21
@Eugene, in a nutshell: yes. But for all gory details: see How does “Reputation” work? – Arjan Jun 13 '10 at 15:38
@Eugene - the other, slower, way is to ask really good questions. Question up-votes are worth 5 points, while answer up-votes are worth 10. – ChrisF Jun 13 '10 at 15:41
Great. Thank you all very much. It is/was very educative discussion. – Eugene Jun 13 '10 at 15:46
Commenting is not blocked for closed questions, even if you have not yet commented on them prior to closing. However, a locked question (which includes all migrated questions) cannot be commented on at all by normal users (don't know if diamonds get to bypass this like all the other things they can do to locked posts when necessary) – Grace Note Jun 13 '10 at 18:56
What should I do if there is already question with topic I need, but I can't comment on it? Should I leave comment as the answer or should I make a separate question? – Eugene Jun 19 '10 at 13:08
@Eugene, unfortunately neither. So officially, if the question is really the same, in that case you'll really have to earn some reputation. After that, either comment or set a bounty for that question to give it some attention. You've been a member on SO for two months now, no excuse for not having the 50 reputation required to comment... ;-) Accept an answer to your other question and get 2 points for free. (And maybe, as you're kind enough to ask: refer us to that question, to see if we can answer it after all?) – Arjan Jun 19 '10 at 13:38
Fine ^_^. I have some questions up my sleeve. – Eugene Jun 19 '10 at 14:14

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