Nothing related with the security issues disclosed recently as they were discovered after some inter-personal issues mentioned (e.g the ones with spiral) did happen.

Beyond I don’t know exactly what you mean by “halting my involvement” as well as I’m still active on bitcoin development and still staying a bit on the lightning-side for the transition period on some complex technical issues.

On the happiness recommendation, if you have already contribute to open-source projects on long-periods, they’re definitively time when you have to do boring stuff (e.g refactors or test coverage) which doesn’t make you immediately happy, however on the long-term bring you personal satisfaction.