If the usernames free up, I wonder if this going to lead to something synonymous to domain squatting?
Eg https://fiscal.treasury.gov/public/gifts-to-government.html
FTA- "previously unavailable usernames will start coming up for grabs after the 11 December cut-off"
https://arstechnica.com/information-technology/2014/01/how-i...
https://arstechnica.com/information-technology/2014/02/twitt...
Amazing if Twitter is just going to release valuable namespaces worth millions all on the same day.