Are Red Scripts useless now?

[Jeykama]

Well I'm using mine to upgrade my gathering gear.

I do have about a hundred red scrip TOKENS that need a use now, though.
Don't worry, I can find a use for them.

If you don't need the materia or can't desynth the i180 gear, and you haven't finished your folklore collection, you can convert them to blue scrip tokens and do the latter.

If you have them all, I guess you can level desynthing, since i180 gear can desynth into glass fibers (used for the crafted i190 stuff)