He explains why he does this in his post.... >But I miss the bustling office culture, going out to lunch with coworkers, forming friendships with people from the office who don't necessarily work in the same department/team.

Not everyone is built the same way

No, they say they do it for the change of scenery and nobody else is there.

Some people find they benefit from physically separating home life from work life.

Bingo. Work and life are two separate spheres for me. Having physical separation of them is important.

I realize not everyone is like that. I’m also not a parent which would probably tilt the equation for me.

No, I don't pay for it myself. My employer setup the WeWork and pays the monthly bill, on the premise that there would be a handful of people in our city (Portland, OR) who also want to work from an office. There have a been a handful of other people who used to come in occasionally, but now it's dwindled down to mostly just me.

I also ride my bike ~10 miles each way (even in Portland winter!) because it's a great way for me to make sure I get daily exercise and breathe some fresh air.

Without the commute, I get cabin-fever in the dreary Portland winter.

I have a pretty robust social life with my wife and other non-work friends, but if I work from home every day, I start to get some major cabin fever...

And I specifically miss the PROFESSIONAL SOCIAL LIFE that comes from having a close face-to-face relationship with my collaborators.