Yeah... for quick proof of how commonplace that kind of Tumblr is, just look at the amount of notes on any given inappropriate picture. It'll likely be in the thousands. HE's was practically indistinguishable, trend wise.
That's the beauty and awkwardness of Tumblr. Everyone's is a smorgasbord. At the peak of my activity I followed about 50 users or so (culture, photography, film stills, definitely nothing intentionally scandalous) and learned the one universal principle of Tumblr the hard way, which is if you're browsing your feed for baby animals or cupcake recipes, the second that somebody walks up behind you you'll scroll halfway down the screen and suddenly it's 7 pages of nothing but artsy *advertiser censored*.
JMO and not directed at anyone in particular but directing shock at the post contents may unintentionally lend credence to what Tammy was trying to convey in her rant about Heather's character. I think Tammy saw her social media and immediately formed that opinion, and then brought it up again publicly to retroactively confirm her loathing and bolster support for it. At the end of the day I think any young girl's Tumblr would've seemed scandalous to Tammy after browsing nothing but Dis Boards. :twocents: