I’ve kept my account because it’s a sought after username. Deleting it would allow some grifter to take it over. It also predates both Elmo’s and the original Twitter accounts.
I’ve not posted anything under it since the third party apps were blocked.
Advertising needs to become as socially acceptable as smoking.
It indiscriminately pollutes whatever environment it’s conducted within, and causes secondary harm to non-participants by incentivising hoarding of PII in the cheapest and least secure manner.