horrible idea. what is it to you what someone is rated?
the game changes as you go up: learn to move all peieces, try not to blunder any, tactics, positional play, plans... that is why people don't want to play you, they are working on something and are not interested in downgrading or whatever.
plus, playing someone much lower rated you stand to lose lots of points say -30 and gain say +4, few loses and you have a really long way back up.
just leave people to decide what they want to do
What some people do is they cheat in 7-8 games and reach close to 2000. Then they do not play for 30 days and if there games go undetected (which happens quite ofter) They log in and play only unrated games in which they no longer cheat. What I want to suggest is this that please make it mandatory that after 3 unrated bullet games 1 rated bullet game is mandatory. Same with blitz and standard games. I think this will check those people who somehow got away with your cheat detection. Why would player with 1800 rating has trouble playing a rated game with a player rated 1100,1200,1300 etc.
First Edit
These cheaters do not even play rated games with their equivalents. Their ratings are for a show-piece only. Atleast make mandatory 1 rated games after 10 unrated games for each blitz, bullet and standard seprately. Staff and moderators can be excluded from this rule as they need to play to check the site. The whole idea to do this is to discourage muliple accounts and false ratings. Because these special class of cheaters stop cheating once their game history(in which they cheated) is no more after 30 days and chess.com is helpless.