Agreed, at some time during the Beta we should start the merging. I suggest however we wait a while and see what type of Tags the community prefers (Public Beta?). I believe the two dilemmas we will be facing are:
Full Title Tags vs. Short Tags
General Tags vs. Localized Tags
Just seems cleaner to have one style of tagging. Personally I prefer Localized Full Title Tags (Like "Quantum Mechanics").
Even though I'm not the biggest fan of the following, we could also consider a mixture "Short Version . Long Version", as found on MO (Example: "ag.algebraic-geometry").
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