[DNSB]

I would have to agree. Many of the tools I relied upon 10-15 years ago are not needed today. Many of my original ebooks were OCRed scans of books which I owned in hardcover or paperback. Even many of the early commercial ePubs were riddled with errors. Now, it's been several years since I purchased an ePub and had epubcheck barf on it. I also correct most of the errors in author naming, etc. when importing the books and cleaning up the metadata since I haven't imported more than 20 ebooks at one time since I originally moved my library into calibre.

Admittedly, these days trying to do a mass metadata import doesn't work all that well since many sites now have extremely low tolerance for mass requests and your connection often gets blocked for 5 minutes to 24 hours.

I do remember when my original Kobo (the one that talked to my Blackberry) barfed on filenames with ' in them. (A Connecticut Yankee in King Arthur's Court for instance).