I mean, once the tokens we earned doing bounties hit the exchanges, these probably lower their price and we will not be generating the money we expected, is not it?
It doesn't work like that. That is really irrespective of current prices of the market or bitcoin if you would mention it. Hitting to exchanger and then getting specific value is in the hands of ICO devs. I mean that will be decided depending upon the funds that were raised for the project development, some complex calculations of advertising and marketing funds, bounty tokens allocated (which will be dumped suddenly) and what will be left over after that. This decides the prices of the tokens. Sometime you will see that ICO will tell us that after hitting the exchanger the prices of the token will this and that but its just their speculation and it could suddenly drop if investors starts dumping the token which are. Thats like overpaying the marketing stuff.
Current value could hamper on fund availability in the later stages. For example, If they raised 100 ETH today and prices pumped for this coin in the later time then obviously they will have huge funds available and thus it could help development first and then prices might spike. Also, vice versa is true.