In office leagues at large companies, the loser must reply-all to one company-wide email per month until next season, with league-approved but work-safe content. Fifty thousand coworkers slowly learn one person's fantasy record. Check your employment handbook first; several leagues have not.
Heavy sentence
Severity 4 punishments are the ones people talk about for years, which is exactly why they need full league buy-in before week one. Put it in the constitution, set the deadline, and agree on proof requirements up front.
The long haul: this is not a one-afternoon sentence. With a time commitment of full offseason, the punishment keeps paying out (for everyone else) long after the season ends. Long sentences need a written end date and a league-appointed enforcer who checks compliance.