See my last reply before this one. The idea to include links to old discussions is only for convenience, a luxury.
I can envision automated solutions (either put on the tiddlywiki.com side or on the talk.tiddlywiki side) but I think it would be overkill. How often do you wish you had access to outdated docs on tiddlywiki.com ??? And even if you do wish this, is it really necessary with direct links if you could just use the search engine?
This detail is a side track. What do you think of the workflow I describe?