In what way is it ironic? I am genuinely failing to see the irony.
There is a problem with free speech in Universities. It's worse in the USA but it's beginning to be seen over here too. There seems to be a belief amongst the members of certain organisations - often student organisations - that it is OK to intimidate and disrupt universities and other organisations who have booked certain people to do speaking engagements based purely on things the speakers have said in the past.
For example, Germaine Greer once raised the question of whether trans women can really be regarded as women because they haven't lived the experience of a woman from birth. A lot of people got offended by what she said and therefore decided she shouldn't be allowed a public platform even if she wasn't going to talk about gender transition. This is not censoring speech you don't like, it is censoring speakers. If Germaine Greer can find somebody to give her a platform and there are people who are interested in hearing what she has to say, then using intimidation and disruption to prevent her from being heard is an infringement on her right of free speech and it needs to be stopped.
Even for political extremists who have offensive things to say, I'd rather hear what they have to say than be "protected" by their political enemies.
That is a difficult one, but I would say, if they can persuade somebody to give them a platform, provided they say nothing illegal, they have a right to speak. You will not be able to dissuade them from their beliefs about having sex with children unless you understand them, distasteful as that may be.
It seems ironic because even no platforming is a form of free speech. Given that free speech is not as trentvoyager has already covered a right that most do not regard as absolute, and one that the govt and the law do not see as absolute, then they are merely disagreeing about what should be allowed. I think those who argue for no platforming such as Germaine Greer are wrong but I don't see how using fines to try and enforce that they accept what you or I think is not also an attempt to restrict their speech and right to campaign about what they think is acceptable.
I note that at the same time as this, the Security minister in govt is talking about using taxation to affect what internet media companies allow to be shown - and given the language used is far from precise, it gives out a mixed message about what the govt thinks on free speech. In addition it seems odd to be proposing taxation as some form of punitive measure.
http://www.bbc.co.uk/news/uk-42526271There are a number of other posts on here which seem to portray censorship as an absolute wrong, and yet it seems to me another thing that we look on as good as long as we agree with it. So the board is moderated by agreement with the rules, and I haven't seen much on here arguing that it should've a free for all in society. Liberalism, which seems to be what most on here espouse, in its classic sense is about a balance different forms of freedom, and I think we need to be more nuanced here about what is acceptable.