NotASlayer
𝕮𝖍𝖔𝖈𝖔𝖑𝖆𝖙𝖊 𝕻𝖗𝖎𝖓𝖈𝖊𝖘𝖘 🍫 👸🏻
I was going to say that "Family" was perhaps not the best example, as the Maclays were clearly lying to Tara and knew nothing about demons. However, Anya's reaction makes me suspect that they either accidentally stumbled on part of the truth or did know a little bit and used that.N.B. Based on “Family” and the episodes with the Half-Demons from Season 1 of Angel, when Demons miscegenate with Humans, the effects are apparent and enduring, as intended. There’s no broad distribution of demonic heritage in the human race.
The thread Anya pulled that ended up revealing that Tara was human was that the Maclays were not specifying what kind of demon. They did not seem to know there were different ones. By that reaction, it seems Anya knew that what the Maclays were saying was true was definitely possible, even if in this case it was a lie.