Honestly, if a team approaches you with this sort of proposal and says they'll pay after the TGE, ALL managers should refuse the job. ALL bounty hunters should not participate either. Make the team escrow a large amount of money if they want to run a bounty, then take the chance.
I endorse this now and will be doing it going forward.
There's so much uncertainty when the team has made no commitment and there's no guarantee they would. The most recent team I worked with are still in contact, but they've moved the TGE date further forward and that's usually but a good sign.
Escrowing a fraction of the bounty valuation will be a good step to attract trust.