A version of thermo.dat based on slop07.dat (maintained by the Geopig group at Arizona State U) and generated using SUPCRT would be very useful, because thermo.dat is woefully outdated, while thermo.com.V8.R6+.dat is internally inconsistent and in other respects buggy.
Consistency in using the same old thermo.com is nice, but better quality, internally consistent data should trump we've-been-doing-it-this-way-since-GWB-1.0.
slop07.dat represents properties of individual species rather than reactions. Thus, a dataset generated using slop07.dat + SUPCRT would be internally consistent and, of course, Geopig is a highly reliable source.
Yes, I know that I could license DBCreate and do it myself, but a thousand bucks for a program that I would use once or twice seems a bit pricey.
If Aqueous Solutions were to license DBCreate and generate a data base from slop07.dat, I would happily pay $100 for a copy and I am sure many other GWB users would as well.
Meanwhile, recommended links on the support page to database projects in Japan and France no longer work.