Every game is -17,18/+17,18

What he’s trying to say is that matchmaking recently has been unbalanced. This shows via the mmr you get or lose since +- 17 usually means that the game is fairly imbalanced and more favored towards that team.

This is especially visible in immortal. That’s the change they implemented. If 1 team has 1 immortal and 4 ancients they will still play against a full stack of immortals. And the full stack of immortals is most likely going to win and gain 17 or whatever mmr.

I’ve experienced the same with my party games that were almost all +15. Look at any of my recent party games

However this is the intended effect of the changes to immortal matchmaking so I guess ppl just didn’t read patch notes

/r/DotA2 Thread