i've tagged people who have done this to me (in that case they deleted it after a few days before i even had a chance to read it properly because i was busy irl, which they were well aware of, they just became impatient/too anxious to let it sit)

those incidents have stuck in my memory. i'm wary of tagging that person now because i don't know if they'll just get upset at something in their head and decide to delete the tag out of the blue. if they'd just left it i would have tagged it. or i would have talked to them about trying a new thread when i was less busy. as it is now they're "that player who deletes tags" in my head