I like this idea, it is more inviting if random people give a few sats to a new user than if the platform allows them to post without any cost. Possibly ask people to 'sign up to comment' and require they fill in a bio. On the bio page, inform them that the new bio will show up in the feed and to introduce themselves sufficiently that people will want you to participate, and if they do, they might contribute sats for you to post if you don't have any of your own. This puts it on the community to screen new users and encourages charitable action, which will naturally need to pass the 'deserving' filter. Just one mildly generous boost could be enough to make 10 comments or posts, which should get them off the ground. The part I don't understand is how will existing users be encouraged to read the bios?