This seems mainly aimed at people with a high level alt following them around, obliterating quest mobs or tag boosting with elites. I don't even think the latter is even as OP as it was for most of turtleWoW since late on twow they nerfed the rested XP gain, but I digress...Using a high level character to boost any lower level character. General assistance is not considered boosting but a level 60 AOE farming for other lower level characters is and is forbidden.
It seems to a change rooted in good intentions, but a bad execution... punishing people making RMT off this is one thing, but punishing people for helping alts is incredibly stupid. Myself and many others were voicing our concern to Pig in chat when he sort of dismissed the worldchat outrage as a "vocal minority" and claimed that there had been grassroots support for this change. I searched the forum, discord, and there was pretty much no discussion about this or multiboxxing as a controversy at all. Coupled with them dropping this in the middle of the first world night on a weekend, feels like they know its an unpopular change but want to double down. So for us who put several weeks and maybe even a donation or two into this TWoW successor only for them to turn around and pull the rug on us which a distinctly non-TWoW rule change, that feels really scummy on their behalf, especially Pig's whole "deal with it" attitude.
This rule isn't just about punishing the people bumrushing their alts to 60 and missing the epic reddit le journey or missing the buggy custom twow content. I prefered to have a 60 to help my leveling alts get that piece of dungeon gear they might not ever get, then that alt can run the dungeon themselves with other lowbies and not only comfortably clear the dungeon but not even compete with gear. Others might just want to boost alts so make a warlock network, or mooncloth servants, which were always legitimately fine and even a welcome part of TWOW economy. Overall this feels like a bad change and I've stopped bothering to play until we get a little more clarification on this.