Hey there. The Spot Project Team, of which I am not a member, believe in community engagement and I think this is a great idea. It helps the community feel like they are actually a part of the project.
Sure, they could go to a professional design agency and spend a lot of money on branding, but there are plenty of great amateur designers out there in the crypto community and crypto is all about community. What is better than allowing the community to be involved in something so prevalent as the coin's logo.