I have deep aversion to "Open source projects should run office hours" title.
Maybe "Office hours may be a good idea for open source projects"? This would not suggest obligation.
In general, fact that someone created or maintains or supports open source projects should not be considered to create any obligations beyond lack of malice and abuse.
I am not obligated to support any bugs, create any features and it is perfectly fine to delete all my repos at any time (unless I declared otherwise).
I am also not obligated to support anything, help with anything, there is no guarantee of uptime, office hours, resolving issues or anything else.
If you want obligations, guarantees or anything like that - feel free to hire a given developer.
Many such things are good ideas and some people may decide to promise them (if you describe something as secure then you declared to handle security issues timely). But I reject idea of being obligated to do any of above.
Maybe "Office hours may be a good idea for open source projects"? This would not suggest obligation.
In general, fact that someone created or maintains or supports open source projects should not be considered to create any obligations beyond lack of malice and abuse.
I am not obligated to support any bugs, create any features and it is perfectly fine to delete all my repos at any time (unless I declared otherwise).
I am also not obligated to support anything, help with anything, there is no guarantee of uptime, office hours, resolving issues or anything else.
If you want obligations, guarantees or anything like that - feel free to hire a given developer.
Many such things are good ideas and some people may decide to promise them (if you describe something as secure then you declared to handle security issues timely). But I reject idea of being obligated to do any of above.