if you could have the email list of PI (Please Invest which have more than 50000 members) and of 3 other hyips. In total you would have the email list of more than 110000
hyip likers.
You could use it to promote affiliate links,
hyip referral urls, etc
Sure, this is called spaming. Everybody would spam if you could earn money with it.
You are not all angels inside.
If you are interested, contact me here:
antonio_rejes@hotmail.com
and we will burn in hell together.