Hi guys, so as the title says i have applied to 3 sig camping and all of them got rejected i don't get it ? why am getting rejected ?
There are newbies just joined the forum and have 8 or less post counts and they are getting accepted over me

It doesn't depend on your post count or activity count if the campaign is just asking for the rank newbie... but it depends on the quality of posts you have made so far and that must be the reason why you are getting rejected and other newbies are getting accepted because their post quality must be better than yours.
I totally agree with you, here i am seen so many newbies as soon as join they wanted to join a signature campaign and start earning, they dont see that it takes time to first develop the account by taking the fully survey of this forum and learn how to post and earn bitcoins freely from this forum apart from signature campaign.
If your a newbie and you intend to join signature campaigns then you must be responsible enough to search and learn things so that you would already know what will you do because of you directly join to a signature campaigns without knowing anything then expect that most signature campaigns would definitely reject you.