You are talking about me locally blocking poa.st, not a QOTO wide block... yes. Not because of content on their servers but because they would flood my replies and I found no value from a single member in their replies.
As for MAP instances, no one from a MAP instance that I am aware of has ever contacted me, I dont even know which MAP instances are out there or exist. So I have never had a need to block them. That said if MAPs start flooding my feed or contacting me then I would probably block them too.
If we ever get a report of an instance with CP we would block that instance. So far it simply hasnt been an issue and it has never entered anyones feed here to be reported.
How do they have a voice if no one on our server has ever seen them post?
Nothing wrong with being strict about child abuse. If any reports came in on QOTO of someone condoning child abuse or worse yet a sexual picture of a child, then the server would get defederated if it is condoned by the server.
No, I think paedophiles shouldn't have a voice within our society, they are one of the main reason on why the fediverse will have a downfall.