F2P games have shit timesinks and grinding and deliberately missing content in order to try and sell you shortcuts to the less shitty parts of the 'game'.
Possibly generally true but definitely not always true. I've clocked literally thousands of hours in Dota 2 - probably the most amazingly complete f2p game you can find at the moment.
I've not spent a single cent on it to date.
The revenue model for Dota 2 is about buying decorations for your characters and other in-game items. Some of these are amazing - like, they look fantastic. But I get to appreciate them because other users buy them, so I feel like I'm getting the benefit of them anyway.
I have no interest in what my character looks like - I just play because I love the competition (mostly the winning part, anyway :)
I agree a lot of the celebration/dominance stuff mentioned here does not sound interesting - to me it's just pointless frills that distracts from the game. But I do think it's possible to build a great f2p game that incorporates them, and I certainly am happy for people that care about that stuff to fund me playing it without having to spend any money!