I think this is where digital reputation verification would be so valuable. Each account and post is signed by your private key that holds that account, verifiable over time... like bitcoin does looking back on the chain. But the market loves opportunities, so it could be sold to a scammer. I doubt inherited accounts (if passed down in a will, for example) would work because of people flagging the account as not reliable anymore... which actually could be another way to fight accounts that are popular but not healthy to society.