The new system is definitely less consumer friendly. Heck, it was changed with the SOLE purpose to be less consumer friendly.
Clearly, consumers should support or at least not mind the change. Right?
What's so amazing about this system: a system that grants less options to a consumer than the previous one, that consumers feel the need to oppose its critique? What are the benefits of players not being allowed to sell their excess gems?
Do you guys just spin up controversies without actually testing these systems out?
If you have 7 gems leftover from a purchase, you can convert X amount of gold into 3 gems and then convert the 10 gems into gold. This idea of "salami slicing" in GW2 is a myth.
Since they re-introduced the custom conversion rate, not only can you easily transfer any quantity of gems into gold, but specifying how many gems you want is far easier than it used to be. Rather than punching in a set amount of gold and seeing how much you get back, you just say how many gems you want. I actually find this system a lot more convenient; I just hated that it didn't have the custom conversion rate at first.
This is a non-issue.
Then I suggest excusing yourself from not pushing 'O' in the future? Problem solved.
There is literally ♥♥♥♥ing nothing on the gem store that you need to buy for your account outside of character slots. If you hate it so much, don't use it. You seem to have an awful lot of pent-up rage about the fact that ArenaNet has their own bills to pay.