Bitcointalk has a summary where periodically published the data on how many visitors on the forum: https://bitcointalk.org/adrotate.php?adstats
When you compare with previous years, then you can see that the amount of traffic on Bitcointalk fell to a breaking point.
Code:
December 2016
Unique logged-in users: 16022
Unique IPs: 133968
December 2017
Unique logged-in users: 90295
Unique IPs: 1093015
December 2018
Unique logged-in users: 32680
Unique IPs from logged-out users: 161435
December 2019
Unique logged-in users: 13727
Unique IPs from logged-out users: 94181
For the most part, I connect this fact that users are switching to much more modern, convenient and mobile platforms for communication and the Bitcointalk site needs urgent updating.