Activity can not be a good indicator to find alts. To be honest I have decent activities, no activities, some activities, several times no activities, low activities. The forum sometimes does not interest me sometimes does. Activities depend on your time, interest, goal and including many other factors.

Goal is a major factor for activities. Someone's goal can become a legendary, someone's goal can be earning from signature campaigns, someone's goal can be sharing their opinions others can have goal like me (no goal at all. Recently I am reading interesting topics, ignoring major discussions, if something looks odd only then sharing opinions). I like this forum because I can express me when I feel I need to.

With that being said, OP is not looking an honest member.