in my opinion it is not easy to find a good bounty development, maybe a few weeks ago I was just like you, confused looking for a good project with the development of the bounty and yes in the end I got information from friends here and after I thought I thought it was good enough to do,
Development of the project can only be seen in their announcement thread ,you will never find any development update in bounty thread since this thread talk only for bounties and once the bounty ended it will be locked or leave it good by the manager who manage the campaign.
If you really looking for development tried to check older ICO that also have bounties you can see there if the project continue to develop or if they forget about it after the sales.