The forum's full of traffic there's ppl posting in each board. Take a look at the local board section there's activity all over in the forum. You haven't given stats so I don't know which data you're extracting. I can't believe it's less popular unless you're sharing the data you've got.
Do you seriously believe that the site is as popular as it used to be? My dear, I want you to open my eyes. Even in simple telegram crypto communities, there are more active people than here. Bitcoin's fame has increased, but it has not been reflected in the number of users here.