> Information found online will also no longer be trustable
Most information you can access publicly, including Wikipedia, is a result of astroturfing fight. Most information online had not been trustable for double digit number of years now.
> we already experience misleading articles today
Again, had been happening for decades.
> footage of some incident somewhere may have been entirely fabricated by AI
Not like we did not already have doctored footage plaguing the public.
> Money will have to be wasted on unnecessary flights to see stuff or meet people in-person instead of video
Necessity to inspect the supply chain for snake oil has been a thing since at least EA (the Nasir one).
We may be dealing with the problem of spam, but the problems have already been there.
All these are true, but just as it happened before the internet, it's accelerating even further. There are clear costs that cannot just be hand waved away.