Yes, all of that! I also see what looks like adding dirt to the paint to get a rougher texture, and the odd amount of very poorly applied putty too.
There's the look of work done in a hurry, there's the look of work done carelessly, there is the look of aging and wear and tear, and then there is the look of "don't know when to stop." That's what I see here. Someone who knows a lot of ways to make something look older and banged up, and yet doesn't know when enough is enough. I think anyone that has ever done a weathered build of anything knows that can be a deep rabbit hole if you aren't careful.
The props had a rough and tumble existence during the run of the show, to be sure, but you'd think whoever "fished these things out of the trash" would have taken care of them since. That's why when I see "authentic" props that look like they spent the last 50 years in a box of rocks kept in the back of a pick up truck yet aren't broken warning bells go off.
Consider both the excessive aging/sloppiness of the piece, as well as the fact that it directly copies features which were apparently unique to the Jein hero (Velcro, no P1 gem, power meter numbers), and a story begins to tell itself: Someone copied the Jein (using the photos and autopsy videos widely available) and simulated aging and “repairs”/“repainting” in order to pass it off an an original and make a buck.
Someone who’s actually deeply into the game (as many of us here are) would at least have tried to copy the known traits of one of the other screencap-studied heroes (TMOST/Lenore/Nona). Personally, if I were to think about committing such a fraud, I’d be sure pick the Lenore to copy, since its details are not well-known, and reference is scarce. It also has a few unique tells, like the P2 body screws. The TMOST would be a lot harder to convincingly fake, because we have reasonably-clear photos (including P1 internals) and HD screencaps to study.
But, no, this piece is a pretty direct copy of the Jein, and no other.
As I have said, the heroes were rarely used after that first season, and then only for static close-up shots. There wasn’t a lot of risk of damage, unless someone carelessly dropped them. Sure, the Jein is beat up and clearly repainted, but I can’t imagine all of the heroes looking like they were repainted by Homer Simpson’s makeup shotgun. Screencaps show that at least one (“The Cloud Minders” hero) looked quite good near the end of the show’s run. Smooth paint, no visible damage.
Also note that all of the original midgrades to be discovered thus far still appear to have their original (albeit battered) paintjobs, and they were the workhorse phaser props for most of the show’s run, not the heroes. Yes, the Jein appears to have been repainted, but that was also the one hero most likely to be damaged, since it was the one with the Velcro, and therefore had a higher likelihood of accidentally dropping to the floor when knocked off of an actor’s costume.