I don't even bother logging out, ever. I just have them open in different tabs.
Imagine having about 7 tabs open. By the time I'm finished with the last tab, something new has come up on the first tab I checked. Huge waste of time. I'm trying to wean myself from all these services, but it's not easy.
This or that project is on GitHub, but join the developers on Slack. And I hate Slack.