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If i post any question using same email (not registered) on SO, I don't get same userid... If I clear cache / use new browser / post from diff. place. This is me >> http://stackoverflow.com/users/260731/kv Is there anyway I can again use this user? I have not registered.

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migrated from stackoverflow.com Apr 20 '10 at 14:14

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4 Answers 4

Two key things:

not registered

and

I clear cache / use new browser / post from diff. place.

When you are not registered, StackOverflow uses a cookie to remember who you are. If you lose that cookie or access StackOverflow from somewhere that can't use that cookie (because you "clear cache / use new browser / post from diff. place") you'll have a different account. You need that cookie to access your account — for all intents and purposes the cookie is the account.

If you want to be able to do things like clear your cache or use your account from more than one machine, the solution is simple: register.

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1  
But when you register, THEY will know where you live. And then it's only a matter of time before you're rounded up and sent away on the trains. Don't you see what kind of fascist dictatorship you're enabling by forcing people to register? –  Holocryptic Apr 20 '10 at 19:34
    
@Holocryptic: shouldn't you nickname be Hypocritic? –  BalusC Apr 20 '10 at 23:26

If you provide an email address in your postings, you can use the "forgot your login information?" link on the /login page to email yourself a link that reinstates your cookie.

If you did not provide an email address.. you're out of luck.

As others have said, your best bet is to register.

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The most likely option is that you've deleted the cookie that identifies you

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Is there anyway I can again use this user? I have not registered.

Just register yourself, then you can use it again. That's the whole point of registration.

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