Although I sold half of my ICN few days back and planned to hold remaining. But this episode is real bad deal. This happened with me few time and I think I didn't learn anything 
Last month same happened when I didn't sell my waves token and that is below ICO and now ICN ..
Last month same happened when I didn't sell my waves token and that is below ICO and now ICN ..Every case is unique, it's your choice, sell if you want
This is not just another copy cat of ethereum or something that has 50/50 potential.With right execution of this project it will be next big thing in crypto and changing dates due bugs is right decision, this is how big things are created.
Tomorrow it would be disaster, just think of projects with bugs, it's like epic fail. I and my team are creating startup, we are REDOING it 5th time and it's almost year of development/changes. If we would launch 1st version, we would fail like everyone else who does similar project. Everyone wants build platform, no matter in which niche, it's hard always. I learned it by myself.
Success comes with patience and right decisions. Those who never did big projects will not understand that, but ICONOMI is one of those projects which will be success only with right execution!
So smart people will hold and will not let the paranoia dominate their minds. This is gonna be bigger than Ethereum. So do your research, try understand what these people are doing and you will never ever sell again!
I personally did 2 week research before my 5 figure investment. I own 6 figures of coins and will not sell. Team is legit, project is legit, execution is right!
I believe in potential of iconomi and that is why I was/am still holding ICN token.
Being a software engineer, I also understand the delays in development and missing timelines. Releasing buggy product is dangerous, but we were expecting Beta and it is expected to have bugs in betas ( that is why that is called beta). Postponing beta at last minute (without giving the exact next date ) shows that its not due to bugs but there is some major issue (maybe design/architecture issue ) in product which they never analyzed earlier in design/development phase and that is red flag here.
I also just feeling bad when I read on this thread that people were able to exit early based on some inside info/tip. But again IF this is true.