The few I joined fill up my mailbox to the extent of having to spend time deleting many. Thus, wasting data that could have been used for surfing for credits and placing adverts. I have been spending so much on data yet with no single downline since about two months. I was doing it on social media before, had clicks but no registration. At worst, got blocked. Linkedln is yet to reactivate my account till date. Efforts made to have it reactivated for the past five months are abortive. I also tried to reopen another account but was to no avail.