> hen did we decide platforming very left-leaning positions is good, and platforming very right-leaning ones is bad?

The same way DHH can have opinions, one-man-companies forking the sponsorship momey can have some too. "We" didn't decide anything, a sponsor company decided to stop sponsoring (with no public commentary), that's all that happened.

More to the point, "platforming" is an active operation, I think anyone can decide who they want to promote and why. It's fundamentally different from censoring.