First post only for guests

Can anyone tell me if using the mod to only allow visitors to view the first post in a thread will affect search engine ranking?

Thanks

OZ

Only keywords in that first post will be available, so you would be eliminating many long tail terms that might occur in follow-up posts that you may generate traffic for.

It will also reduced the indexed page count since pages 2+ cannot be indexed (nor individual showpost pages). That is not directly a bad thing as it can help conserve link value.

However, it's a big trade-off since as your forum grows more and more traffic capable keywords will get posted into the follow-up posts.

I would highly suggest leaving everything open.