Honestly, I think it's just a great way to let people know you're still doing maintenance on a project. If they're not excited by the project in the first place, they're probably not reading the devlogs (especially not mine!), but if they're interested and already own the project, they're probably going to be appreciative of any support or new features you're adding.
So, I wouldn't worry about trying to drum up artificial excitement. If the project is exciting already, you're doing great.