PM sent. Thanks for your help. I guess i have used around 20 - 30 Accounts.
I am having the same problem as polwest any comment from an account made on my ip is ghosted even on brand new accounts. I have tried private proxies but I get the same problem. The only solution I have found is buying separate accounts from different people and the accounts work to mass comment for 1 day, after that all comments are ghosted again even on a brand new account made from the same sellers ip. I have to buy from a different seller with a different ip to get them to work. It's very frustrating I want to buy accounts in bulk but I'm pretty sure only the first account I use will work... YouTube is punishing me ATM

any good solution for this problem vebxpert?
@polwest and @doublejuice:
Friends, I have tested on the accounts that polwest has sent me via PM (which were giving problem at his end) I have been successful and the comments are still live (not flagged).
It's not good to mention the links or YT IDs here therefore, I'll just mention that:
I had posted 2 comments from First YT PVA (both went live)
I had posted 1 comment from Second YT PVA (it went live as well)
I have provided the video links to polwest, where I have posted the comments using which YT PVAs.
Above all I had posted on both YT IDs from same US IP (not changed IP but cleared cookies using ccleaner while switching between accounts, which must be done of course).
Seems like accounts are all good but problem is with your IPs friends, may be their IP class is blacklisted or just your Proxies but things are working sincerely fine at my end.
Finally I would say that its proven positively, what me and Alfonso had mentioned in previous posts about this issue. (Culprit is proxy and/or content, not the PVAs ~ mostly).
Shoot me a PM When you see this Please, I am looking for 25 Accounts PVA For YouTube. I will also PM you this message. Thanks
Your PM has been answered Harry, even your email.
P.S I hope this test report will help many of BHW members to understand about why your comments get flagged as soon as you post them.