I'll tell you one of the most reasons why no one invite random people to sows (including myself) because people treated the site as a normal site for example this guy
Joined: 4 days
Last Seen: 22 hours and 56 minutes ago
Uploaded: 333.33 MB
Downloaded: 165.20 GB
which means not only but your account in jeopardy to get banned but also for the invites to get banned as well... that's the main reasons why sows members are very selective and they have a reason to be that way..