Thank you for your concern @Nasser M. Abbasi. The forum was kept open for reading for quite awhile in parallel with Community, as it said in the announcement. But the software system behind the forum was a source of many technical issues and laborious maintenance. There were also many outdated posts that reflected wrongly upon new technology developments. All old forum data are kept for potential future usage of the good content. As it was said in this blog we've made a significant effort developing Wolfram Community and integrated all Wolfram-related topics here under a single platform closing old forums. Now we have advanced tools and potential to grow. Please help us to build strong and positive community.