Reported, lol

So, after a recent blitz game, I received a message from my opponent. We played two games, both of which he lost.  At the time, my rating was low-mid 700s, and his was 950ish.  He messaged me to tell me that he had to report me...for sandbagging.  His thoughts being that as a nearly 1000 blitz player, that he shouldn't have lost (twice, hehehe) to a lowly 700s player.  He told me that I knew too many perfect moves to be rated so low.  I had to explain to him that I play blitz to get myself to think more quickly with fewer mistakes, but mistakes I do make...and often.

Has anyone else had to deal with this type of communication?  I'm not mad or anything, just curious.

Your opponent's not far from the truth. If the ratings are accurate then the chances of a 700 rated player winning 2 from 2 against a 950 rated player are a few percent. There was a significant dip in your performance. The reality though, on Chess.com, is that some players, myself included, underperform due to careless periods of play rather than sandbagging.

Another aspect is players like myself would rather perform horizontally than vertically. I look at it like a pyramid. You want to be well rounded at the bottom, and as you get better you don't worry about being as well rounded. This means going from 1000 to where I am now 1300 is not in my interest after 6 games. I would rather gain 10 points for a win, 5 points taken off for a loss, and then gradually move up. Soon, I am going to get slaughtered and lose the inflated rating.

In addition to this, you have these one trick ponies who can play one line like a GM. If you play a bunch of them online, it doesn't mean they are better players. Yet, your rating goes below what you are capable of. If you played the same lines against players at your local club, you would perform better.