Even Kahneman, who got a Economics Nobel has this issue:
https://retractionwatch.com/2017/02/20/placed-much-faith-und...
Yeah, and when you see a Nobel prize winner you must be assuming it's a bullshit grifter.
It's a heuristic, not a conviction. Generally I don't bother to listen to the TED talks anymore and I'm much more distrustful in my priors than "normal" for anyone I see giving one.
That said it's not like I'm going to dismiss someone with otherwise solid credentials out of hand just because they gave a TED talk, but it still lowers my trust.
Really depends on what you're trying to use the info for. I'm not a researcher so it's not like this affects my day job, and if I was I'd like to think I'd dive into the sources rather than ever just taking someone for their word. That's like the equivalent of copy pasting some code you found on discord into your production app.