For me, boosting is inconvenient. I have to take off rubber, get off all my glue, apply tuner wait, apply tuner, wait, apply tuner, wait... a couple days, and glue e'm back on. Having 100kg of books or a klicky press is needed. It takes too long and I would rather glue my rubbers on once and be done with it until I need a new rubber.
My ethical view on not worrying about who tunes is more centered on fairness. If a TT maker applies the tuner, it is OK and not enhancing performance, but if you or I apply the same tuner in the same degree, it is restoring... but associations see it as cheating, so do some other players. They can suck on an egg or whatever is handy for them.
This is pretty close to a baseball maker producing a baseball glove that is soft. We know time and air and sun and chems can make the leather hard. Periodically, it needs special oil and lube to restore original softness and performance. Imagining MLB saying this is cheating and you should buy a new glove at the cost of a sheet of Tenergy… Parents would flip out crazy mad.
Well, we don't flip out crazy mad over needing to buy TWO sheets of rubber at average cost of 40-70 USD each month or two if we train and compete (2x a year if not for 4 sheets) This is major money going into TT makers... it is wrong... and I say that as a reseller of TT equipment. I don't care, it is wrong, wrong, wrong every day of the week and 4x on the weekend.
if someone wants to restore their rubber to be original or consistent, they should be able to do it. How is an officially gonna measure for this? Rubbers come with smelly tuner in them already... and VOCs still leaching out of the topsheet and sponge. ITTF advised us to "Air out" our rubbers for 3 days. Who friggin' wants to bust open a sheet of rubber and leave it laying around 3 days... your 5 year old will think it is an odd shaped frisbee and start throwing it around.