Youtube partners only aloud for custom thumbnails?!?!

I didn't have an adsense connected and was still given thumbnails :p think they give them out to a lot of people now.
you probably had it but just never knew, youtube don't give them out to everyone, on your monetization tab there'll be something :)
I was just wondering about you guys opinion on this. Is it a good thing or a bad thing do you think. I mean not everyone can be a youtube partner like you or me!:crying:
To me everyone is allowed to have thumb nails. In order to get it just monetize one video successfully and you will have it. When i did it i Didnt even have an adsense account.