A couple of times, i have got private translation bounty requests that not listed on bitcointalk. i think there are several bounties like this, not official listed on bounty thread but profitable for hunters.

For example, telegram managers for a good project, they earn stably by managing telegram. however, we cant find those bounties in ordinary participation only. Exactly private bounties.

I think that there are not a few examples like this.
and I want to hear about private bounty experiences you joined.

To be honest,I believe that even now we can earn efficiently through this industry.