Data Mine from a Forum

Screen scrape information from a forum. The forum contains information including:
- name of poster
- date and time of post
- number of likes
- sentiment
- posters comments
The information must be scraped / copied into some kind of database (or excel) that allows analysis. Ie:
- find all posts by a particular user
- keyword search
- sort posts by number of likes
- custom analysis tools

The forum I am wanting to download information from has a high number of daily posts per topic.