So not all politicians get cancelled for blackface.
[1]https://www.cnn.com/2019/02/01/politics/northam-blackface-ph...
Heck, we've already forgotten the certain prime minister of a Northern American country who escaped that fate, for similar reasons!
No one reasonable is going to run for office knowing there's a great chance their dirty laundry will be used to fuel the news cycle. It's not worth the risk; the possible damage to their family; and so on.
This is why so many of today's elected officials are as inspiring as the colour beige. No offense to beige of course ;)
Yes, Trump is an exception. But I said reasonable people ;)
I would imagine it's relatively affordable and easy for someone to scrape social media and store it all, forever.