I've been using Farcaster since @dwr onboarded me back in Fall 2021. I was very pleasantly surprised to see the bump in DAUs / interest once frames were launched. 

That being said - Why did frames make Farcaster pop? Did Farcaster just reach critical mass already and this was a catalyst? Or were Frames the kind of ...

imho a big part of Frames' success is  because of its versatility and the urgent need for web3 teams to have distribution + survive.

Frames not only enables founders/builders to have an interactive, relatively frictionless user/value capture funnel, it also serves as a complementary product offering for B2B builders.