only that this company with led by Lauda and Pelsjager didn`t pay me for my previous and continued work
if yahoo mostly pays a little bit but honestly, I'll most likely aim to get into his bounty.
You seem to be confusing campaign managers with the token/coin issuers. Campaign managers are generally given set terms to operate with, like number of weeks, number of participants, total number of tokens/coins (ie. budget) etc. These terms are generally set by the ICO/service.
If the campaign manager provides all the appropriate data (post counts/stakes etc) to an ICO/service, and that service then fails to distribute the tokens/coins, that isn't the campaign manager's fault.
I've noticed at least one campaign who has now gone to great lengths to explicitly state as much:
The bounty manager(s) is a facilitator and not the bounty-issuer. They will not be held liable in the event of a breach of contract by the bounty-issuer or failure to fulfill their obligation. Facilitation is NOT an automatic endorsement of product or service being offered, unless explicitly stated. We reserve the right to change the campaign at any moment, and reject people based on our judgement.