It depends on which side to look at this question. On the part of the ICO teams, one can say that by paying for the services of bounty hunters, they simultaneously invest their tokens. It is impossible to say from the bounty hunters that by participating in the campaigns of the ICO bounty, we are investing something, because you can only invest money in any form. You can not invest your work, time, efforts in whatever they were expressed. Such an expression would be incorrect.