It's the nature of I², and the personalities that stick around. For some it's only fun for a while, and after that while it stops being fun and becomes something else entirely.
For me this place can sometimes seem down right nasty and exceedingly unfriendly. Very unwelcoming indeed. I can only imagine what it might seem like to someone with a similar personality as like me who doesn't have history with the site...
Not saying I² should change or anything silly like that, just that it's good to be aware of what I² is and isn't, and it isn't the most welcoming of places, so getting new people to come here is always going to be hard, and every member that leaves is going to be sorely felt.
¯\_(ツ)_/¯