Though lack of motivation or laziness is not a particularly interesting answer.
I have found “I thought X would be awesome, and then on doing X realized that the costs were larger than the benefits” to be useful information for myself and others. (If your laziness isn’t well modeled by that, that’s also valuable information for you.)
I’m also interested in hearing from you again about this project if you decide to not complete it. Rock on, negative data!
Though lack of motivation or laziness is not a particularly interesting answer.
I have found “I thought X would be awesome, and then on doing X realized that the costs were larger than the benefits” to be useful information for myself and others. (If your laziness isn’t well modeled by that, that’s also valuable information for you.)