@StormLantern I feared that might be the case, but maybe there is an easier solution for the inflation problem? I'll share some more details of my own experience:
I (around 1200) played ladder with a new player, skill level around 0 rating lets say. Because of having no previous games, ranking increased quicker than mine for each game we won, until we hit a point where we started losing more and more, bringing my rating down faster than theirs. In the end I think my teammate rached 7-800 and was crushed when not being carried, making it basically impossible to play alone.
I guess it's not exactly adviced to play with such large gap in skill level, but this might reveal a problem that exists for any party with a rating disparity even if it's less noticable usually. I don't know much about how the rating system works but I could have a look at it and give some more concrete suggestions. If you think I'm onto something and wouldn't rather dig into it yourself.