Tube Automator uses multiple accounts that post in sequence and in case one account gets captchad, that particular account isnt used for 10 minutes( which currently is the time for which youtube shows you the captcha, if you wait for 10 mins and try again it wont whos you the captcha till another 4 comments are posted)
So if a situation occurs where all accounts are captchad the application "sleeps" for "x" minutes and continues in this fashion. So in short even though it doesn't technically bypass the captcha it still is a set and forget app as it doesn't require your intervention like other youtube software.
And for those of you who are desperately trying to crack it.. my only advice is if you have a lot of time and I really mean a lot of time as well as expertise in cracking.. good luck.. if not stop wasting your time and PM me for a $50 off discount coupon and this is only for BHW members, so don't give it out elsewhere.
Can I get that coupon bro? I don't have enough posts for PMs yet. Waiting on mod to approve my posts so I can.