Yeah, I've come across that thread. The problem is that fuzzy rename needs a name that's close, MESS names as you know are 8 character abbreviations. It may get a few, but many names are fairly bastardized. Attract-Mode is the absolute perfect front end for arcade games as everyone has settled with using MAME's 8 character names, but outside of that AM kind of falls apart.
Something to suggest would be adding in an online scraper for emumovies.com by searching for the description name provided by MESS's lists but then saving the files as the actual rom name. I have some limited python programming knowledge and no experience in online scraping, but I may attempt to make such a program if this is out of your interest.
edit: Or add a feature where AM also looks for artwork fuzzy matched to the romlist's description name. No-Intro sets are pretty much exactly the same as the description name, but with added info at the end in parenthesis. (USA, Euro) for example.