It is v good that Helen is being called, her question really sums up the issue & the fact she was banned should really bring it home. I don't know what she was finally banned for, but her tone on twitter was always very straightforward & she was not personal. I think it was the abstract/policy nature of the question that made it threatening to some. It illustrates the problem with making it impossible to discuss matters if principle & policy.
Maybe Graham will draw out how he fell foul of a particular group who seem to have undue influence in tech - He really was targeted by the anime lot and gamer types. He was the only big name account on the liberal/left speaking about this, and that's why they took him down. I don't think he should have been banned, but then I'm more permissive than most on what ppl should be allowed to say. I am a bit worried. Some of his twittering picked on individuals, lead to pile ons, and focussed on appearance. I'm sure some of the committee will agree with his suspension.
Well hopefully their evidence will draw out the important issues, and make the committee see the full picture. I wonder who is giving evidence in other sessions.