Substack is human moderated but the moderators are from another culture so will often miss forms of humour that do not exist in their own culture (the biggest one being non-literal comedy, very literal cultures do not have this, this is likely why the original post was flagged...they would interpret that as someone telling another person to literally set their house on fire).
I am not sure why this isn't concerning: large platforms deny your ability to express yourself based on the dominant culture in the place that happens to be the only place where you can economically employ moderators...I will turn this around, if the West began censoring Indonesian TV based on our cultural norms, would you have a problem with this?
The flip side of this is also that these moderators will often let "legitimate targets" be abused on the platform because that behaviour is acceptable in their country, is that ok?