Okay, think I've found the pattern:
If the last thread listed on the Recent Threads column is in two or more forums then the links at the bottom are linking to the original forum that the thread came from.
Someone probably already noticed this but let me know if I was right

"Instead of Pay It Forward I prefer Plant It Forward" ~Howard Story / "God has cared for these trees, saved them from drought, disease, avalanches, and a thousand tempests and floods. But he cannot save them from fools." ~John Muir
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