New to Stacks, where can I hear from people who don't think it will be adopted?

Hello,

I am new to Stacks and am very interested in it (working my way through the white papers now). However I like to hear from people with diametrically opposing views. Is there a post or youtube video you could recommend from a “hater”? I am not wanting ad hominems, but arguments against this chain.

Thanks,
Dennis