Critique Please Plusgsm.com.br

Please critique my forum

Thanks

ops.. url Fórum PluSGSM

I think the biggest issue with your site is threads with images.

[Somente usuários registrados podem ver os links. Clique aqui para se registrar GRATUITAMENTE!]

is all i see as a guest, and i assume it means i need to be a member to see it.
problem is, you're blocking bots from seeing the images too, and losing any keywords in the image name with multiples of the same register message.