No, they don't, not being allowed by Microsoft to release the content for free on the X-Box 360 is one of their self-admitted biggest failures (they expected Microsoft to change that policy, and they haven't), which is why TF2 for the 360 is still not updated.
My mistake? Content packs online are both regular and free for the PC. Microsoft sucks.
Bioware pumped out tons of free content for Mass Effect 2
Very little of it was free, so no they didn't
http://masseffect.bioware.com/info/dlc/
Compared to Firaxis, tons.
http://masseffect.bioware.com/info/cerberus/
Everything in that section is free. Two parts contain a significant amount of additional in game content in the form of quite enjoyable missions. In any event, any reasonable person would agree that the Shadow Broker pack, $10, is worth a good bit more than four crummy maps that most people wouldn't bother with even if they were free.
Example please? I don't recall Paradox or Taleworlds (which has only two games that I paid close attention too) doing either of that (I know Stardock is committed to finishing and fixing Elemental).
Every Paradox game since EU1 has received extensive rewrites with major community involvement. Both EU2 and 3 received multiple massive patches that completely changed every aspect of the game, free.
Taleworlds released Mount and Blade with the commitment that you could buy in for a discount at early beta (I think I paid like ten bucks, probably less) and receive all the content up to the full version without paying a dime. They've since made regular content releases and community involvement an integral part of their business model.
That is because they totally dropped the ball on Elemental, they really screwed up. Civ5 isn't quite as bad (its not great, but there have been many far worse releases, some of which became good games once patched).
They did. And when they dropped the ball, like every time they've dropped the ball, they've acknowledged it immediately, begun the process of fixing it, and attempted to make the customer whole with significant free content and/or a refund. In other words, exactly what a normal healthy company in any other sector does in response to a screwup.
Firaxis has dropped the ball in a similar, less obvious manner, and hasn't even taken the time to acknowledge it. Exactly what a crummy company does in response to a screw up.
Anyway, I'm done here.