If you for example send a message to a Signal group, a copy of your message ends up on each device (the smartphones, and computers if they set up Signal Desktop) of each member of the group. Even if disappearing messages is turned on, it's hard to confirm all copies of the messages are actually deleted from all devices, and from any other places (like notifications databases) they may have been saved to. OnionShare chat rooms don't store any messages anywhere, so the problem is reduced to a minimum.
Indien u bv. ’n boodskap aan ’n Signal-groep stuur, beland ’n kopie van u boodskap op elke toestel (slimfone, en rekenaars indien hulle met Signal Desktop werk) van elke lid van die groep. Selfs indien verdwynende boodskappe geaktiveer is, is dit moeilik om te bevestig dat al die boodskappe werklik vanaf alle toestelle geskrap is, en van enige ander plek (soos kennisgewingsdatabasisse) waarin dit bewaar is. OnionShare-kletskamers bewaar nêrens enige boodskappenie, daarom is die probleem tot ’n minimum beperk.