the only actual "problem" with WFH (actually a management problem, as with everything) is that people no longer have any concept of "business hours". just because people have access to their "office" all the time doesn't mean they have to work outside their 40 hours!!
As a freelancer, I often write emails in the evening but usually leave them in the outbox and send the following morning because (a) I don't want the recipient to feel hassled by them and (b) I don't want to create the expectation I'm available to answer emails in the evening
