Does Google index sites differently depending upon the software? My new forum is powered by ElkArte a new SMF fork forum script. The page index is too low and crawling is so slow too. Is it due to my software (no offense ElkArte) or my poor content..
I haven't heard of this before but maybe so? I do know that some forum softwares have better in-built SEO than others. If you would like to get your site indexed faster or diagnose any problems I recommend Google Webmaster Tools (https://www.google.com/webmasters/).
Have you tried submitting a sitemap? That is another way of letting Google know there is content to index and where/what it is.
Google Webmaster Tools help, you also can use things like ExciteSubmit and Scrub The Web to get more backlinks, SEO tools and analyse/create Meta Tags 🙂