I feel like ratings are a bit off. And i think i am not the only one who thinks there are some weird things into the ratings. So i decided to have a look.
I used the following source:
https://thbrown.github.io/aoe2deratingcharts/
This site only shows data for Ranked RM games. I would love to see some statistics about DM (both 1v1 and teamgames) and unranked maps. I dont really have a guess about DM, but i think the results of unranked are even more extreme than the results for RM team games.
1v1:
The distribution of ratings is pretty much symmetrical around 1000. Since this is the starting ELO, this is what I would except. Maybe there is a little bit inflation of the ratings, because you get/loose more points within your first 10 games. So this picture is no surprise at all to me. This is just the example of how ratings should be distributed to me.
I also havent heard much complains about not equally skilled match ups for 1v1. Some games seems pretty much fine.
Teamgames:
The distribution of ratings is centred around 1275. This is already pretty odd. I would not excepted so much inflation of the ratings. At some point ratings starts to inflate or deflate, but i dont really think an inflation of around 175 in just a half year is normal. This is for me a first sign something is off to team ratings.
Second odd thing is also the skewness. It is way too much skewed to the right. The right tail is way too tight. Again this is a sign something isnt right with the team ratings.
I have heard about some complaints about non equally match team ups, even the ELO of the players is pretty much equal. If ratings got inflated and skewed for some reason, it will result in no fair match up, since ELO doesnt reflects your skill level any more. All this together makes me wonder if the team ratings are calculated correcly.
Like i said: I do expect an even more inflated and skewed picture for unranked games.
Comparison 1v1 vs Teamrating:
For me it is really odd almost everyone seems to be better at Teamgames than 1v1.
Open questions
I feel like there is something wrong in the ELO calculations of team games and unranked games. It would be great if we can spot the issue. I have stated some question about this. Is would be great if we can understand what is going on and thus help the devs in fixing the real issue.

Why are team ratings so inflated?

Why are team ratings so skewed?

Is there some smart guy who can make pictures like this for DM 1v1, DM team games and unranked games? I would love to analyse the graph and add this to this post.

Can someone tell us the calculation of ELO in 1v1? I would bet it is the same as HD and Voobly: Just the Elo rating system with K = 32. For the first 10 games, they used a different K value, only for the new player.

Can someone tell us the calculation of ELO in teamgames? First thought would be it will be the same as HD and Voobly (see youtube against for that calculation), but this is not true.

Can someone tell us the calculation of ELO in unranked games. I havent seen any graph, but my bet was is is even more extreme than team games.