I'm not sure what is worse: the ability to raise from the dead a thread from 2004, or eliza sahoo's bald faced attempt to promote some Oracle on WinDoze technology, or is it ADO.Net?
Eliza: if you want to attract attention, offer free Oracle or SQL Server licenses.
OpenACS: there should be some limit on reviving these old threads...maybe just reverse posting to blog-order...and maybe some indication that half a decade has passed since the last post?
Another idea: cross-link threads. This would require admin/maintainer input, but you could retire a thread, but keep it linked to current discussion on the same topic. Personally I think the ability to search is enough. Retire threads after a year or so.
In the age of Google, you should make old content harder to access, but still available. Maybe old threads should be rolled into an historical FAQ.
IMHO, the ability to dredge up and abuse old content doesn't help promote current OpenACS software and solutions.