there are a few groups i was a member of like lifters https://groups.yahoo.com/neo/groups/Lifters/info which was an intensive technical development group in the field on propellerless, rocketless, jetless flight using only electronic high voltage.
also some of the politics groups were a great time capuslue for around the clinton/bush election era
a lo to f eartthquake researchers gathered on several earthquake groups as well including caltech seismologistics and advanced amatuers many of whom arent around anymore.
also some of the info in these groups can be used to defeat patent applications as they show evidence of public prior concepts and art.
yahoogroups consisted of somewhat more technically advanced users than modern website users like reddit etc because they were earlier and somewhat harder to use.
its a lot of good quality content.
also in the early days on these groups spam and massive controlled astroturfing account groups was pretty rare.
this is like losing 15 years of ancient Sumerian writings in a very interesting early time for the Internet.
yahoo is going to keep the messages but just delete the art and other uploads or attachments to the messages correct? although apparently they will make some groups private as well essentially closing access.
also some of the politics groups were a great time capuslue for around the clinton/bush election era
a lo to f eartthquake researchers gathered on several earthquake groups as well including caltech seismologistics and advanced amatuers many of whom arent around anymore.
also some of the info in these groups can be used to defeat patent applications as they show evidence of public prior concepts and art.
yahoogroups consisted of somewhat more technically advanced users than modern website users like reddit etc because they were earlier and somewhat harder to use.
its a lot of good quality content.
also in the early days on these groups spam and massive controlled astroturfing account groups was pretty rare.
this is like losing 15 years of ancient Sumerian writings in a very interesting early time for the Internet.