I there must be another internet law which states that the best twitter accounts have around this number

If he was tweeting anecdotes, or still working (seems he might be?) and tweeting about it it'd probably be a lot more - but it's mostly US basketball (and other sports/personal stuff) by the looks of it, so however veritable a hero it's just not interesting to the same audience (or at least, for the same reason, of course some of us will be basketball fans) - and probably if you're big into 'basketball Twitter' he's ~'nobody'.

It's more a personal account that's 1 year old which opens with a tweet on cancel culture followed by his political leanings, cryptocurrency posts, and an overwhelming amount of basketball stats. It does have the occasional post about his involvement in geothermal energy though but beyond that following the account isn't going to get you any content he's known and respected for.