I was using Tight Bond III to make some oak picture frames recently and had to take one apart, the glue was so strong it took pieces wood off at every joint. The glue is stronger than the wood (oak). I have also use Tight Bond II and Gorilla wood Glue with the same results.

With glue this strong is it even necessary to nail/staple the frames together?

Does anyone use only glue on their frames?

I made 100 foundationless deep frames with only glue for swarm boxes and they seem very strong and very quick to make. Should I test them to see how much weight the bottom rail can support? Anyone up for a competition nails vs. glue?