OK, so how is that relevant to the filter discussion? Is your point that because a motivated actor can sneak hidden data around a filter onto someone elses computer that filters are somehow useless?
Discussion
Exactly. Why are you taking on the risks of adding all that filtering complexity if you stand 0 chance of modifying the blocks you are going to store?
Every line of code is a potential breaking bug or remote exploit so we do know what risks you take.
The code has been there for quite a while and didn't seem to be a problem until Citrea decided it was. Anyway I can make it more difficult to spam the blockchain with kiddie porn I'm going to do. Maybe I can't stop the seriously motivated steg type people but at least I can prevent the average spammer/perv. Open the floodgates to plain as day CP and no normal person will ever consider running a node. I wouldn't.