Just what the world needs... Another Linux distribution.
Seriously though, you need a lot more to sell me on a new distribution than "Ubuntu, but with AppImages". That's actually a large part of the problem of FOSS in general: We focus on the technical underpinnings rather than on the problems that we intend to solve. If the creators of this distribution want to address specific issues of the Linux desktop experience, they should do a better job communicating that, not least to attract contributors.
Seriously though, you need a lot more to sell me on a new distribution than "Ubuntu, but with AppImages". That's actually a large part of the problem of FOSS in general: We focus on the technical underpinnings rather than on the problems that we intend to solve. If the creators of this distribution want to address specific issues of the Linux desktop experience, they should do a better job communicating that, not least to attract contributors.