Many projects simply fail to collect their desired funds during the initial period, especially since the market dropped a few months ago. Extending the ICO and/or bounty is unfortunately a necessary evil, I would rather they managed to raise the money required to move ahead with the project, as it is more likely to be a success and the value has a better chance of holding/increasing. Not much point in getting tokens on time if they're worth nothing when they hit the exchanges. It does mean that shares are usually diluted though, as more people join the bounty campaign. Nothing much you can do about it, I just try and be as selective as I can with choosing bounties to participate in, but it's never guaranteed.