So, I went into flame forge for one of the first times, and clicked on create just to see how much it was.
I simply turned on blend, and it requred 80k to forge...
Seems a bit much.

Anyway, my question is this:
If such a simply flame cost 80k to forge, How do forge request shops make any profit? Or, why are flames not over 200k in the market?

Because flames hardly (nearly never) sell for more than forge price. If you really want to earn something more, it has to be something really unique, or an old flame made by a famous artist...

If you want profit, don't use flameforge.

Hmmm.... I always thought forging your own flame would be cheaper because you are cutting out the middleman.

Another question:
In the past, wasn't a monthly subscription required to forge flames?

Dont know or it was monthly, but it wasnt free to use.
That's why gman80 and Fnugget became populair, almost nobody could make flames and knew the tactics.

But you can't make profit forging flames nowadays, almost every sort of flame is buyable. The only open forge shop open is Furryprints I think, but he just asks forge price so no profits for him.