I was sidelined from the slack you're referring to, after expressing opinions against the impending softfork.
As you’ve already acknowledged, that’s not why you were removed.
And I also realize that, whoever it was, felt that apparently scrubbing that slack was also the right decision.
It was a decision made by multiple people and as far as I know, nothing was “scrubbed.” It’s a free Slack, so it’s possible that comments were eventually archived after a period of time.
As Justine has already noted, many people disagree with each other in that Slack. But you already know this...it just doesn’t happen to fit into your particular narrative.