Why is it that users must reach 40(maybe) to upvote or post on other users walls?

Question

I mean is there a reason or is it just because?

Answer 1

So they don't sign up or sign up with multiple accounts just to spam on other people's walls or to spam vote their friends/ themselves.

Comments

Oh.Anyway thanks for clearing that up

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The wall posting limitation was added after some accounts started asking people to send them emails (most likely to send them ads, porn, etc. back). I actually made a post about the issue after a third spam account was discovered, which you can see here: http://pokemondb.net/pokebase/meta/44569/there-been-flood-users-attempting-peoples-email-addresses

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Wow didn't know people would do that.

Answer 2

It's to prevent spam wall posting.