@sneak If your Signal client had a setting of "I refuse to allow senders to withdraw content from my device", the person trying to send a single-view image could be told in advance that "this isn't available for ..."
That would be a better way around, mutual consent, not assumed or enforced compliance.
@yojimbo no nothing like that, i don't consent to it leaking information about my settings to others either. i'm just going to patch out the parts that delete anything ever from my device or prevent me from viewing messages i have already received. anything other is just my computer gaslighting me. remote users don't get to delete my files in my inbox.