Probably just the language barrier. You can't type for a damn, but I understood the question fine. The answer probably lies in your IPs. The fact that you're seeing up to half of your accounts still alive tells me that it's probably not a footprint getting your accounts blocked or killed, or else it would be happening on all of them. I'd start with IPs. If you're using public/open proxies then you already have your answer right there. Could be that you created an account with the proxy 127.0.0.1:80 and set it aside and didn't use it. A few hours later, someone else creates an account from that same proxy, having harvested or scanned it as well, except he goes right to work and beats the hell out of the account. Microsoft will kill his account, and chances are any others that were made with the same IP thinking they're more accounts from him. Your account would be subject to this block and you'd lose it, having never even logged in.
The other problem could be that when you create they're prompting you with the "verify this account" thing where you have to verify the account by getting the email verification link sent to the alternative email you used on signup. I think they give you 7 days to click the link and if not they disable the account. Again though, that's mostly an IP issue, as clean IPs won't usually trip that.
