From that first article, it seems like the majority of the increases are on people making more than 400k. That's really all that the article talked about, so that's who I'm assuming it will impact the most. I could be wrong though, I'm no expert haha
I think I forgot about that because I make nowhere near 50k a year lol. I know that I'm still going to be getting a little more taken out of my paycheck this year than before. Hopefully they can start planning a new system now, instead of waiting until two weeks before the next "cliff" to decide what to do