Earlier quoted context omitted.
>it's telling that Microsoft has to require folks to use Teams. Not really I think, considering that MS bought GitHub, with all of its already existing culture. I see this move as them homogenizing the infrastructure. And also not willing to pay to another company for a product that's actually their competition.
Of course, and I can't fault Microsoft for that, even if (having been on the bad end of a similar acquisition and IT merge) it sucks for GitHub. My point was: GitHub as an organization didn't choose Teams willingly, and are still paying for Slack and only using Teams for video conferencing. Of all the explanations of why that might be, the easiest to land on is "because Teams just isn't that good."
HN of all places should know better than to believe that people using one thing instead of another must mean the other thing is worse.