What? That is so backwards from my experience that I'm tempted to think it's a troll, or I'm completely missing what you're trying to say.
I have two Trello accounts and have never had a problem switching between them. I have one for work and another for personal stuff, just like you suggest, and it works fantastic. If I'm logged in to one and want to check the other I just log out, enter the credentials for the other account and it works exactly like I would expect. There's no mixing at all, they're completely distinct, which is exactly how I want it, and exactly how it should be, IMO.
Google, on the other hand, is an absolute mess. At this point I've resigned myself to the fact that my work Gmail/Google+/Google/YouTube account and my personal Gmail are inextricably linked together and there's no way I can unlink them. It's such a disaster that it was a big factor in my decision to start moving my personal accounts away from Google.
> ... it works fantastic ... just log out, enter the credentials for the other account ...
So you just have to log out and re-enter credentials each time you want to view a different account? And that is fantastic? Doing it several times a day is a pain. Also you only get notifications for the currently logged in account, so you'd need multiple browsers running just to get notifications from both.
Then if you have a mobile device, it becomes even worse as entering reasonably complex passphrases is a long tedious pain. Doing that several times a day is a non-starter.
I think he is saying that it works for people who are either "at work" or "at home". Once you want to have your work notifactions during your leisure time, it gets complicated.
I wouldn't use Trello if they linked multiple accounts like that. TBH, I can't imagine a situation where I'd want to get work notifications at home or home notifications at work. Ditto for mobile devices. Work notifications go to the work device, home notifications to my personal device, and I don't want them mashed together.
If I'm currently logged into my work GMail account and want to check my personal email, I logout, and it brings me to a login page with my work GMail account displayed, and a password field. Below that is a "Sign in with a different account" link, and if I click it both my personal and work email accounts are shown.
I've also noticed small things like the avatar image I set at work becomes avatar image for my personal account.
I have two Trello accounts and have never had a problem switching between them. I have one for work and another for personal stuff, just like you suggest, and it works fantastic. If I'm logged in to one and want to check the other I just log out, enter the credentials for the other account and it works exactly like I would expect. There's no mixing at all, they're completely distinct, which is exactly how I want it, and exactly how it should be, IMO.
Google, on the other hand, is an absolute mess. At this point I've resigned myself to the fact that my work Gmail/Google+/Google/YouTube account and my personal Gmail are inextricably linked together and there's no way I can unlink them. It's such a disaster that it was a big factor in my decision to start moving my personal accounts away from Google.