[BUG] Wrong display for pieces taken

It is how many pecies you HAVE LOST displayed on your side.

That's a bug. When you're White, you are supposed to see Black's pieces that you take on your side. That's how it is dispplayed on every other chess apps and that's how it was displayed on chess.com before this bug happens. Also you can in the picture below that I have +7 in terms of the advance on my opponent because I took much more pieces than him. Except that HIS pieces are displayed near MY counter. See?

It is not a bug but a design decision made by the site. The old site had the way you expect it, the current site was designed the way you see it; it matches across mobile and web.

For the record, players who are interested in improving should NEVER count the material off the board!
The only material that matters is the material that's left ON the board. The only points that matter are 1 for win, .5 for a loss, and 0 for a draw (using traditional scoring).
If you have a B+N+P and your opponent has a R and a Pawn, you're not up one point. That doesn't make any chess sense. You're up a B+N for a Rook. It may take a few more seconds to say it, but in terms of thinking correctly about the game, it's far more efficient and accurate.

If there is something that I dislike about a website, does not make it a bug. A bug is an accidental technical issue, not a design feature I don't like.
It's more confusing, and takes longer to work out how far I'm down- that mean nothing to me, but knowing the points turns it into a numerical figure I can understand quickly and easily.

At any rate, whether it is a bug or not, the only way to let the staff know that you don't like it is to report it as a bug.
There is no point in making a forum thread about it. The staff almost never notices these threads.

It's more confusing, and takes longer to work out how far I'm down- that mean nothing to me, but knowing the points turns it into a numerical figure I can understand quickly and easily.
The problem with point count chess is precisely that it gives the player the illusion of understanding the material imbalance. If the material imbalance is anything more complex than simply counting pawns, it's usually wrong.
For instance, a Rook is usually considered to be worth five "points". But a Rook vs a B+2 Pawns is usually at a serious disadvantage. A B+ 1 P is about worth a rook. So, is a Rook really worth 4 "points"? Two Rooks are usually worth more than a Q, but a Q is worth 9 points.
Man, this point stuff gets confusing in a hurry, doesn't it?
Maybe it'd be better to understand chess in the language of chess, rather than the language of machines?