That is the same twitter found from @quickseller.
What are you using to search for those?
In this case, I've only looked at his eth address used, I saw a lot of transactions from 0x758475A62d47471e78e86de0965946c057EA2333
At this point, I've googled it with and without site:bitcointalk.org.
Now I found the user and read his post history and voilà alt found with your (found) social media handle.