Hey if Q introduced the Borg to the Federation then did Discord introduce Changelings to Equestria?

You could say that...
It's been my theory that Changelings are what he did to Flutterponies in the Age of Chaos, like what he did to Fluttershy x 100...

If Equestria is in the Gamma Quadrant, the changelings were already there....

1791028 you mean the Delta Quadrant. The Borg are from the Delta Quadrant.

1792284
Ah, but the species known in the Trek universe as "the changelings" (also known as the Dominion Founders, Odo's species) are from the Gamma Quadrant. (No relation to "The Changeling" [singular], which was the ST:TOS episode that featured Nomad.)

So then the question becomes:

Are MLP:FiM's changelings any relation to ST:DS9's changelings?

1799544 Oh ya Odo. Sorry i didn't real watch deep space nine that much.