Looks like you guys are handling it right from a consumer standpoint. Thanks for letting us know and for not playing the fingerpointing game in public. Looks like you're not playing at all and just moving on. Nice.
I have zero skin in this game, and personally think the right move is for Adafruit to simply say, "We wish Sparkfun the best of luck" and move on, but the post you are responding to is clearly looking for a public fight.
This would mean admitting the allegations are 100% true and harming their business even more with the risk of losing it all in worst case. Now we can assume it's not as simple as SparkFun makes it. It's a dirty situation, but necessary, and justified if they are really a victim.
> but the post you are responding to is clearly looking for a public fight.
SparkFun started the war, AdaFruit seem to only defend here.
I don't see why this would be the case at all.
Some amount of defense is appropriate just to clear the air. Maybe this has gone too far, but hey, we're all still reading. I don't even know what a Teensy is.