When that new option was first put into effect when v3 was in beta testing, the vast majority of players were chosing the lower ratings. It isn't a big deal.
With the amount of players that join a site as popular as this, a vast majority still leaves a pretty sizable minority that can have significant impacts on other areas of the site. With all due respect, simply calling it "not a big deal" demonstrates ignorance of how this actually impacts players on the site.
New members of chess.com used to be required to have some activity before they could get a daily rating, and then that rating was usually 1200, 800, or 400. Now brand new unrated players are joining chess.com within the last few weeks with zero speed chess games or any activity of any kind, and they are getting 2000 ratings for individual matches with a single opponent AND for joining team matches!!! For many it took a life time of struggle to earn a 2000 rating, and now chess.com is handing them out like cookies at grandma’s house. What is going on?
like the others said it is because of your initial choice of how good you are. Dont think of that as their actual rating because they need to play a few games to see hiw good they are. If they are not that good ther rating will drop quickly.