[w-m]

OP here, what I'm actually using is "{first}.{last}@hhi.fraunhofer.de" (https://arxiv.org/pdf/2312.13299). I see how my earlier comment was confusing.

In our case it's for saving space in the paper, and also for reducing spam. This small change may now seem silly in the age of LLMs, but the papers that have full email addresses in them get a considerable amount of fake conference and journal participation emails, which is annoying.

[Sophira]

Oh, I see - the situation's more nuanced than I thought, then. My apologies.

I still think this is valid (and certainly not the fake email address that people are calling it), but yeah, it's not what I thought it was.