Some would argue that you should be trying to market what isn’t ready yet, to see if people are actually interested. What’s wrong with having a logo to let people know you’re serious about the project and that if it gains traction it has less of a chance of being yet another abandoned github repo?
Yeah, that is fair. I think it depends on how you look at it. For me when I see a very early project with a shiny logo it feels to me like the author is more interested in getting popular than building something. But maybe I'm just jaded.