I suspect Bioware itself of originating the Mass Effect Andromeda DLC rumors.

Seems easy enough: first, set up a rumor from a shop purporting to be doing Mass Effect Andromeda DLC that there actually won’t be any story-based DLC (which everybody is largely assuming to be true, so why is it a rumor).  Then, let the rumor spread.  Finally, put out a response saying:

Boom! Instant buzz.  Or not.  I don’t care: if reporting this gets interest up in ME:A DLC, now that they’ve patched the animation bugs and everything, I will happily report away. I want to know what happened with the quarian Ark, dagnabbit.