I will go and check it out. I run an organization of photographers and journalists and make it very clear to our members what they need to know about working in WordPress on our sites. I do screen shots and more.
You can see two of these on our site at:
Since hundreds of thousands of WordPress users have chosen this platform, if I were to do a plug-in like this one, I would take the extra time to explain it in detail.
Why would anyone want to use this when he has warnings on each step that says it could interfere with other plug-ins, or you are totally on your own and there is no support. Why would he indicate you have to hand code files without assuming that the average user might not understand how.
Now unless he put a warning upfront that said, this is for advanced users only who are comfortable with coding and others shouldn't install this plug in because it could cause you to lose your entire site, I see no reason to use it.
Sure it might be a great plug in if used properly, but as I found out, on simple click on one of the many unclear options took my site down and I had no one to turn to for help.
I will check into the Blog Defender, I have found out that paying for some of the new plug-ins I just bought for our new site going up at: http://internationalpress.org was worth the money. I would prefer to pay and see that a few thousand people use it and gave it a good review and their is superior support then get a freebie and have to make a donation and still not get any support.
Just my thinking...I give all of our members one on one support and our instructions and info on our Member Support blog is quite extensive.