Why did you decide go via the NXT AE?, that method enriches/favors NXT holders and means putting in additional steps to buy the shares for investors who aren't holding NXT. and additional steps for the issuer to cashout to BTC. It's a tedious process to sell often via BTER and means taking haircuts either side if the liquidity is not there . Basically a lose/lose unless you as issuer are planning on accumulating NXT or a buyer already rich in NXT

I want to invest in SIA but don't want to hold NXT because the distribution method is one of the most disproportionately skewed to few individuals in recent memory (early NXT IPO backers, some presumably who used socks to register multiple stakes have already profitted enough), I would rather not support that in any way. You could of made a BTC denominated offering directly using CounterParty (without requirement for any XCP token) and open ownership of siastock to whole crypto community, without having to sell the shares in background via PM's and undertake complicated manual book-keeping to ensure you don't oversell shares and so forth.. Addtionally because that method is on-top of bitcoin blockchain it will be transparent and auditable for anyone to look at so there will be no cries of fraud like with maidsafe IPO.. An example of an IPO issuance on counterparty is below http://blockscan.com/assetInfo.aspx?q=ROCKMINER