So I recently began allowing members to host images on our site, and converted all our previous images using @AndyB ConvertImageAll tool(which is amazing). I have it set so guests cannot view attachments, and realized today this means search engines like google cannot index them, and members can't link to them. Currently I have seen an improvement in registrations(i.e guests register to see the pictures), but I am wondering whether the trade off of SEO vs registrations is worth it? We currently have around 60K hosted images. Would these drive good/active traffic? Or just suck up more bandwidth? Any and all opinions are welcome!