come to learn that it should only be used when discussing the blockchain specifically - rather than just any activities on the blockchain. I think I'm right in saying that, yea?

You did the poking around not me.

If you are referring to first layer dev/coding stuff, than I don't agree. Hive is more than just the infrastructure, without the community it would mean nothing (a good example for that is the old chain, especially after we forked), so in my very humble opinion, the tag should not be limited to discussing the blockchain specifically.