Oh, those are quite prevalent on Twitter then. They're always on Elon Musk's tweets with a photoshopped image. The fault is thus on Twitter for not actively policing the feeds to remove then. It would be incredibly easy to at least tag them with the current OCR they're using on images to detect certain phrases.
Not just this, twitter had been a hot ground for ongoing crypto scams. There are tons of accounts which has 10k+ followers who are scammers trying to rob people's money by doing fake giveaways and promoting scams. While considering Bitcointalk (a community which is being run by the community) it is much easier to spot the scammers and they would be tagged sooner. Not just that, there are indeed way more celebrity shillers like Lindsay who are being bribed to promote TRX knowing its a shitcoin and Marques Brownlee video has put a pause on these shills! Justin Sun has been trying to promote Tron as much as he can 
and newbies fall for it. There were various instances from known people of mine, who invested in the shitcoin citing the reason for the tweets.- How do they blindly believe it?
- Why did they skip the investigation or verification on validity of those addresses?
Quite often, newbies fall for these since they are into the space to make instant profits in short span of time, hence more or less they would either be losing their btc in trading shitcoins or vanity address scams like these.- Why did they skip the investigation or verification on validity of those addresses?
I did create a few vanity addresses back in 2019 for experimental purposes but stayed away from them as they consumed too much of my processing power nevertheless it was a fun experiment
