diabolic.bg wrote:Why do you think so?

I thought the same thing, i.e., GooglePuller is a misnomer. Let's give the Google engineers some credit. Do you honestly think that creating a bunch of self-referencing links will help the crawler better than a sitemap? Or that the value of these links will have an impact on the SERPs? It might have an effect if they were backlinks from other sites, but pages and pages of links within a site (500 per page?!?) doesn't serve the interest of users, and I doubt that search engines would care either.
On the other hand, Google Webmaster recommendations do include the creation of sitemaps navigable by users. I modified my board to include "FAQs and Favorites", a generated list of the most popular/helpful threads. The list is created based on hand selected topics (nothing more than a new column in the topics table). If you have a forum with a few thousand threads, it's handy for regular visitors who want to refind past discussions they've read and new visitors. And presumably the bots are happy with it too, since it indirectly validates the relative worth of a particular discussion, something the GooglePuller blind generation doesn't.
Of course this is only my opinion. Who knows, maybe Google developers
are idiots and consider an auto-generated page of 500 links with one keyword "valuable".
