[davismwfl]

I pretty much agree with all your warning signs, so I guess it mostly depends on your love for the product/startup. If you feel compelled and love it, and it is concerning you that this direction is wrong. Which by your account it sure seems to be. Then use the holidays to do some searching, talk to the CEO to feel him out and see where you are in the first week of January. You may find out the CEO is just as confused and dumbfounded as you are, but is trusting the people he hired. Or you may find out that he is a technology chaser and wants to be able to say Golang to whomever asks.

Either way, they aren't overly dedicated to making this happen given their schedule, so I wouldn't bust my ass in this case, but I wouldn't half ass it either. I would give it 100% because it is your reputation that you are protecting here.

Lastly, sometimes we don't see all the details or have all the answers even when the issue looks so clear from our current seat. So asking direct questions without being accusatory or sounding derogatory can really be enlightening. And that new knowledge can go either way of course, but that makes your decision easier.