I think the people building wind earn the name pro-wind, same for solar as pro-solar, etc. And they are largely focused on their own efforts, as it's a lot of work to build power plants. I don't think online posters deserve to be called pro- anything since they don't really do anything other than talk, and it's mostly negative FUD so if anything they're anti-.

The point I'm trying to make is that it seems that the people who claim to be pro-nuclear aren't actually in favor of nuclear, otherwise they'd be building it. Everyone else is building what they want, everyone except the supposed nuclear group.