RedBubble users UserSem and mdesign are selling stolen art.
I've posted about UserSem on Reddit but wanted to draw attention to him here as well. I wasn't able to identify all the artwork or contact all the artists so please take a look and help if you can.
https://www.reddit.com/r/mylittlepony/comments/pvi0pm/usersem_on_redbubble_is_selling_stolen_art/
UserSem's shop: https://www.redbubble.com/people/UserSem/shop
I sent an email to RedBubble about it for all the good that'll do. I have good reason for saying this, because 7 years ago I notified them about mdesign selling artwork stolen from Equestria-Election, and it turns out he's still doing it! Here's a post I made back then:
https://mostlyponies.tumblr.com/post/85553898151/mdesign-the-art-thief
I notified RedBubble twice about it but apparently they don't listen unless the actual copyright holder makes a claim. I notified Equestria-Election way back then but didn't get a reply, and now their DeviantArt account is deactivated so I have no idea how to contact them. If anyone knows, please do so or let me know, because mdesign has been profiting from their art for 7 years now!
Here's mdesign's shop: https://www.redbubble.com/people/mdesign/shop
and here's the only dated collection I can find from Equestria-Election aside from Derpibooru: https://mlpfanart.fandom.com/wiki/My_Little_Pony_Fan_Labor_Wiki:Workshop/Equestria_Election