Good idea or bad idea? Limiting Tespia to have it?

It's interesting to note that bugs, especially major ones, in new content, are generally posted on the forums within hours of a patch going live.

Meaning: the players playing their regular servers encounter them pretty quickly.
You don't need faster exp, you don't need higher drop rates, you don't need to give players the ability to select any level and job or wish for any item.
Just let them play normally.

So, the best way to implement Tespia would be simply to copy an entire server to it, and let the people play their own characters.
The temptation to use Tespia as a PS will be gone.
People will have their own characters that they know well (and would immediately recognize if a skill was changed or glitched, for example), and have nothing more exciting to do than play the new content. Those whose levels don't match the new content will do whatever they usually do, thus testing that old content hasn't been damaged by the new.

Oh god i'm all for that. Just make it obvious that nothing you do in "tespia" will apply in the "official" server so that the newbs don't complain.

Problem is that with this logic tespia doesn't even need to exist though. Just implement the new content and pay more attention to what forums say like they should have done in the first place.