IPOs must have an ESCROW option!
... have a look at exocoin, no one knows if that will ever work out;
but he offered escrow right from the start of his "early bird" IPO:
http://exocoin.org/index.php?s=about#escrow
Yes you read right! We do accept escrowed transactions! You send your bitcoins/ litecoins to a trustworthy thirdpart organization or a bitcointalk member of your choice. There is no disadvantage for you over the direct transfer to our address except that you have to handle the additional fees for using the third party service!
You still have to consider this:
If the third party escrow service scamms the money then it is only your issue. You cannot claim any EXO if the escrow will not give us the holded money. So be patient to use an escrow service that is trustworthy! We have not much experience with the use of any escrow services. The most known seems to be http://btcrow.com (minimum transaction seems to be 0.25 BTC here), https://thebitcoinescrow.com and https://coinguard.org However we cannot guarantee, that these services will operate accordingly. Use at your own risk. Or use any other escrow service or bitcointalk member you like - if the following steps are possible on that site (and do not use private persons or forums as escrow. We will only except professional websites or professional and experienced bitcointalk members)