Looking at the soundcloud accounts he follows is interesting. We can see that Aphex Twin and his more underground user18081971 account (where he posted a ton of unreleased material) are his oldest followed accounts. His reposts of Through Me, Tutti Frutti and Nothing But Pleasure are 4 years old, so the account is AT LEAST 4 years old. Aphex Twin's user18081971 stuff is 5 years old, so maybe Tom joined, inspired by Aphex Twin, with the intention of sharing unfinished or unreleased stuff, and only did so 4 months ago.
or maybe he did share stuff all those years, deleting them after a while and we never knew