From the above conversation, Squidward asks a set of questions–and deletes messages–to make it look like SpongeBob agreed to shut the restaurant they work at, the Krusty Krab. There s no hint of the messages on each user, although timestamps stay from the edited dialog. In nature, nefarious Telegrammers like Squidward can rewrite history.
Not a sliver of evidence.

Picture the following exchange:

Telegram offers a single benefit to users that are extra-paranoid: The ability maintain a conversation and to erase all messages.