And that comment is valuable because it shows that it's feasible to do with data center water, which is much less hot than the industrial sources you mentioned.
Huh, I think I read it as "It's amazing how Seattle is is heating their new buildings:".
That remark of mine was unwarranted, while I don't agree the comment makes it clear that it's special to use water from data centers, I didn't get that from it.
That's exactly what I mean though you posted it with a click-baity lead-in.