Well ,i have upgraded my account to Premium Membership and i should say there isn't anything special about it. you will just get a glow over your username , you still can't use signature and still can't Like/dislike threads You will also see people's geolocation , based on their ip.which you could normally see when you participate with people in private messages about area 51 , its a place where premium members (mostly) post their feedback about forum bugs privately .it doesn't have anything from admin's. which normally must be filled with valuable admin's experiences about web.
I'm also disappointed about the signature and the home page. When i was buying premium member ship before the site upgrade (around 4 months ago) even a normal member could have a signature depending on the amount of posts.
The premium membership is less about what the member gets and more about helping to support the forum. You buy it because you want to contribute money for all the great services DP provides, not because you want an easy way to get a signature...
Actually not really... People get premium membership because they get stuff. For example advanced functions in the Keyword Tracker tool, free products (like our Sphinx Search for vB4, etc)
You haven't go through below given properly where it says 'All rules still apply'. https://forums.digitalpoint.com/help/premium DON.