I am not sure if you’re against boosting in general or boosters spamming trade chat.
Do people still use trade chat? like i turned it off over a year ago and i don’t miss it at all, i would suggest you just turn it off.
I have nothing against boosting (probably a bit biased since i do boosts myself) as there will always be people with freshly dinged alts that won’t get accepted for a +10 and thus resorts to to boosts. Most of my clients have been decent players on an under geared alt they wanna get started on and then they buy a boost to get started. I occasionally get a well geared player that is bad, but just wants to get weekly. In those cases i do feel a little bad about those who see he has done a +10 in time and takes him for a group and then he can’t really carry his weight. In those cases we try to teach him the mechanics as we go so he can learn, but while still trying to just smash through it.
I think boosting is fine as long as the boosted person understands not to abuse it and use it to try and make people believe he is better than he is, which has been the case where i have had clients say “i know i am not good enough for a +10, which is why i just buy a boost” so to that point i think it is fine.
As from a boost POV i think it is more than fine. Running m+, or at least pushing, can get really expensive as there is no real gold reward at the end. And if you posses a skill, i think i am well withing my right to use that skill to make gold.
Lastly, if you make dungeons hard to the point where my team cannot 4 man it, then the average pug group will be unable to time it too, so probably not the best idea.