I did verify the output. You can download your stuff via their api
How bad it is if put of 200+ conversations, a couple of those are not exported correctly? Not much honestly. If I verify some of those and they are ok, I would see no reason to keep verifying all of them.
When proven wrong, hackers always say "Well in 5 years time or in 10 years time, things might have changed, so I was right and you were wrong".
It limits your own reasoning capabilities, and your satisfaction of always being right yet again will start diminishing with time.
- if it is worth backup up or exporting, it is worth doing it early and often
- but more importantly if we backing up and exporting, we should be continuously thinking are we even on the right platform? Does a better alternative exist?