They hit me with the coin wipe , that night I bought a 90$ bundle, the next day they banned me off the auction house. Between the coin wipe and the second action I only sold the players I pulled from the bundle. I appealed the ban but I’m certain they just look at the automated report that says you violated the auction house rules.
Similar to you I’m an older dude who’s played mut since its inception, 0 bans or suspensions regarding auction house violations on my account of over 15 years of use, but none of that mattered. Hope you have better luck than I did but good luck.