Wongo, I can't remember if it was in that thread or another that I related my story of demonstrating glue-strength to the members of a woodies club. I prepared several examples of side to side & straight end-to end joints from the same wood using 4 different glues, and let them cure thoroughly. So I fronted up on the night & proceeded to demonstrate the relative strengths by ripping them apart. The side to side joints all failed under similar (extreme) loads with 80% plus wood failure. The end-to end joints were easy, just a sharp rap on the bench & they popped apart cleanly. That is, until I came to the epoxy example. I picked it up saying "and even epoxy won't work in this situation...." as I whacked it on the bench. The joint remained intact. I gave it as hard a whack as I could - still nothing! The other blokes reckoned the look on my face was worth a year's subscription & were still chuckling about it years later. I put it in a vise & whacked it with a mallet and it gave up & broke - very cleanly across the glue-line.
So in some situations, with some woods, it seems you can indeed get a pretty strong end to end joint with epoxy glues. In a non load-bearing situation an epoxy joint may be as durable as needed, but my lifetime's experience has been that just about any glue fails, eventually, so any joint relying on glue alone, whatever the glue, is probably not a good idea & better avoided if possible.
Cheers,