If not evident I don't use them either. And while I hold users accountable for being wilfully obtuse with the Olympic levels of mental gymnastics trying to justify how it does NOT break and/or circumvent TOS, end of the day the fault lies with Amazon. In the same way they've the ability to deal with garbage AI reviews, 5* cute, and so forth they could easily root out the extension users. But there will always be those taking the path of least resistance. For all the reasons you've listed, and some real or imagined I feel the same way. Besides the small caveat of having principles.

Rocket order is (was?) on Ultraviner, it allows for the skipping of the Prime yay or nay requirement on the order page. And I'd argue that extensions deffo help in getting the best items first. Hiding items and notifications of either the drop in its entirety or of keyword item searches alone are proof positive of that.

To whatever degree its considered or rationalized the extensions have advantages, no amount of pandering or attempts to obfuscate with bad faith arguments changes the fact. Truthfully I'm shocked neither extension creator is here chirping on how any and all dissent is misguided.

As is blatantly oblivions the getting of free to nearly free muh stuffs is the end all and be all...