Here are my two reasons, actually three
1. BHUB (a shell)
2. Risk
3. Know when to get out
I was in BHUB well before almost everyone else. I tried to tell everyone, they said the same things are you are. I can't tell you specifics, because nothing will placate you, and I understand.
You have to just admit much of this is a guessing game, too, I only put enough money in these that I can afford to lose, like in BHUB, the pay-off was nice, could have been more but the money risk was low though the pay-off may have been high.
BTW: I have been in SPRL for several months now.
Good luck to you.
briboy