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I've noticed that some members aren't responding to replies to their posts, and when I looked into it, the default setting for notifications is unchecked, so people have to opt in to receive notifications in their profile, or check the box on every post. Clearly, so don't know how to do that, so they are not seeing when others respond to their posts.
I could edit the profile of individual members, but I don't like to do that, as it potentially overrides their personal choice, and besides, it would take forever to go through them one by one.
Is there a Global setting to make the default setting for all members that they DO receive notification?
If so, can you please lead this amateur through the process for setting it?
Thanks.

Great! That worked fine.
Thanks for your help.