In the rather light fluffy writing, Lackey has been trying to work in social commentary or at least seems to be pulling on current events.
This book could be MRA/GamerGate in Valdemar.
And... it actually works. By no means is it her strongest novel, and I almost want to headdesk at all the times Mags nearly mansplains (or at the very least could all the very intelligent women he's helping actually be able to come up with answers without him magically supplying him). But... the harassment and vitriol that's coming out is very familiar, only it's a smaller community than the global Internet and both the Guard and the Heralds actually take the threats against the women seriously.