Question u h
I think we need to recognise that in suggesting songs of which we disapprove should not be sung, we are advocating censorship.
It still appears to me that such attacks on free speech are right only when some major imperative, probably a moral one like for racism, justifies that step. In this case the arguments are fundamentally about taste and what people's choices say about them.
I think that rejoicing in someone else's tragedy (Munich/Hillsborough references) is distasteful enough to provide strong motivation to prevent those songs.
I do not believe that reminding people of guilt and attempts at coverups (eg police in Sheffield) is ever wrong.
Ultimately, I am unsure what the precise reasoning might be to stop referring to Heysel wrt Liverpool. Because the arguments might collapse to the point that one can never draw attention to a guilty person's past. And that would make pursuing past injustices ( 96 & 39) rather difficult.