My understanding is Havelock sends you the take from this IPO, so your risks are negligible to nonexistent. Why the "hefty collateral"?
Exactly this, are people really going to fall for this again? This is no different than the original 100 TH/s offered by Bitfury or 235 TH/s by DeadTerra. A long extended (essentially interest-free) loan for Spondoolies. The IPO investors will only receive satoshis for bearing all the risk, while Spondoolies gets funding to flood the market even more and screwing the investors even more.
Spondoolies resorting to selling mining bonds to get more funding? And they were starting to be considered part of the gold standard too. Either offer a portion of potential future sales or go to VCs, this is nothing more than a sham for funding and offloading all the risk. For those "investing," only look to mining operations offered by Bitfury and Hashfast. In the case of Bitfury, they don't get to share in the millions that Bitfury made and in the case of Hashfast, bankruptcy.
Turn elsewhere unless you want to lose your coins.