1) They Have a "Friend" That Invited them .. This Is Actually One of the Most Common Ways A Sock-Puppet Gains the Trust of the Community. If they Do Not give the user of their "Friend" ,, That's a Clear Warning. But If They Do ,, Then is Their Friend ever Active ?? If Not ,, then It Is Likely that /Both/ Accounts are Sock-Puppets. 2) Are they Ever Online at The Same time as Their "Friend" ?? If They Never seem To Be ,, Then that Is Very suspicious. Of Course ,, If they Are sometimes online ,, They Could be Logging Out and Back In ,, Or They Could Have Multiple Devices. You Will Never know. 3) Do They just Stop Going online after A Few Days ?? This ,, I Admit ,, Is Not a Good way of knowing ,, But If You compare This With all the Other Numbers ,, It Could help .. Sometimes ,, a new user that Joins bcs of A "friend" goes Offline forever ,, They Gave up being a Sock-Puppet. 4) Sometimes ,, A Sock-Puppet Might Create an Account ,, and Wait A few Weeks ,, Or Even Months Before Going active .. This Would Be to Not Have the suspicions Of A New Scratcher Finding The Studio. A Way to Check is to See if They Have any Followers or Projects with Views ..