The section is for long-term offers, not just HYIPs.
Having forum staff decide whether specific investments are dangerous is definitely something I don't want. Exact rules for what constitutes a HYIP could be defined, but services that don't meet the HYIP definition probably won't be that much safer than HYIPs. And interest rates in the Bitcoin ecosystem are much higher than traditional interest rates, so it's difficult to determine the correct limit. I think a policy of caveat emptor makes the most sense.