I also think we are all probably using other websites for news, and they have messaging systems, and debates of their own that are generated from the article you have just read. Sure you could regurgitate that again on this site, but there is less inclination to do so, hence why it is less active than it ever used to be. Probably a lot more reading of topics on here in relation to the volume of posts. A lot of the posts on here have degenerated way off topic as well, which will have driven some casual users away at a guess.
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