I don't know if it happens to others too but sometimes I take a photo that I like even though it has no obvious merits and I find myself very reluctant to delete it. This is one of those... so as I'm not going to delete it, I thought I had better post it instead ;-))
I think most of my shots fall into that category - and I'm still surprised when someone has a nice comment to make about them! How else is your hand going to be recognised and immortalised if you don't do it?!