The VOIDRUNNER'S CODEX is coming! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
You can see a person's user number by holding the cursor over their Profile button. The user number will appear in the status bar at the bottom of your browser.
Member number is an inborn quality, much like ability scores (and even harder to change than those).
Post count is an acquired quantity, like XP or perhaps skills; you just pick them up along the way.