Well, speaking as a Supporter (who will likely be renewing for a year very shortly), I like features that enhance my experience with the game, which mostly have to do with how I interface with the website and how involved I can feel playing the game. I am not a Supporter because I want to have a tactical advantage over non-Supporters. That's not why most people become Supporters, I suppose. Adding convenience to what I already do on this site is good. Giving me access to information that non-Supporters don't have would cheapen my successes, which I don't want. That's my main point.
I think the game is worthy of support with the way it plays now and with the way that I see the developers are dedicated to making improvements. I assume that this website will be even better a year from now.
[I'll say even more wonderful things about this website if it will get me a "Supporter Discount"!] ;-)
Don't ask what sort of Chunks they are, you probably don't want to know. Blowing Chunks since Season 4!