I like this idea, and do feel it is definitely a more accurate title for the header.
Another idea could be to add Whale Picks in addition to Trending and then Trending could reflect posts with the most votes, and Hot could reflect the most active posts (mainly discussion in comments and resteems).
And remove Active. It's pretty redundant then.
Good point.
yes, i hardly ever look at the active tab.
You see, maybe the viral header could help whales find posts to upvote.