It's Pantherhawk.
He is an infamous psychotic Iowa troll. About 5-6 years ago, he was banned from most message boards and then he kind of disappeared after he was doxed by a fellow Iowa fan. His doxing led to his pictures being all over the internet (they weren't super flattering) and people finding his Harry Potter fan fiction (no joke). He eventually must have paid for a service to scrub his digital footprint because the stuff he was posting was truly awful.
That said, his schtick always started exactly like Boomtime. He pretended to be a Gopher fan that just had "high expectations". It never made sense though because his suggestions were idiotic (see suggesting firing Fleck and hiring Halgorson because of high expectations).
Boomtime is Pantherhawk.