With the current market condition, blocking coins even for a much longer time seems to be a very good solution. The blocking period gives the project time to develop and prove its potential. A few months should allow to achieve the first successes and interest investors. Thanks to this, project can avoid a drop in the price of the coin immediately after listing on the exchange.
It would be a good solution but it will only satisfy us if we are also seeing some kind of improvement by the project although we don't hold the token reward yet, some of the projects I joined hold the bounty and I have not seen their progress, that's really disappointing.
This is a risk that can only be reduced by thorough analysis of the project and developers before joining the bounty program or investing.
At the moment of the bull market there is no problem with the inflow of new funds, so blocking is not needed. However, during the bear market period, unfortunately, this is often the only solution.