They're a business, you know, with a building that needs rent and utilities paid and employees that need paychecks, plus whatever it takes to run a site that gets so many hits a day. The profits don't go to just one person sitting on a big pile of money or something lol.
If they're adding features that cost money I'm fine with it because I've played the game without them before, I'll just keep playing like I always have. If they start charging for previously free things, that's a different story.
edit: Hey cool it's my 2 year anniversary at ppt today!
Err yesterday.. I have not gone to bed yet so it is still Tuesday to me. This has nothing to do with anything, move along ^^