I'm sure he has already spread PM to several members who are active in the Trading Discussion thread. Turns out it's true, it's not just me or you. maybe OP has spread spam PM to many members.

At first, I thought he was inviting me to join a trading group. maybe some kind of group for analysis or signals in general that we see often.
but there is also a possibility that he invites us to invest in a joint project.

someone professional wouldn't do this. unbelievable.