I don't see this as being feasible at all. Everyone has their own pet cause to rail against (whether it's energy timers, dual currencies, online connectivity, or IAP in general) and it would be a lot of trouble to try to cater to every weird thing people want by adding all these special tags to everything.
Plus, many games start out with no energy system and then add them later, which would confuse the whole system.
And finally, there's no financial incentive at all. It would be extra work to go around putting special tags on everything to satisfy the whims of F2P haters or what-have-you, and what would it accomplish? A few people would click articles less. There's no gain for TA, and they can't waste resources on that.
As the person above said, just going through forum threads is a good way to learn anything you want to learn about a game.