After knowing you for a long time and seeing your interactions with others both online (in real-time chats) and in-person...
I would guess that one of the reasons is because (from what I've observed,) people in management and leadership positions tend to have a triage system when sending out alerts. They prioritize the people who come to mind first, and those are often the ones they have the closest relationships with and/or are seen as most vital to the operation -- which can also possibly mean, the loudest.
Leadership has a tendency to feel the need to cater to the ones who will throw the biggest fusses (not in all cases, but in many,) holler at the most people, or will be most likely to walk away.
You are none of those types. You don't make a big fuss about anything unless you think something is blatantly wrong (and even then, you're more likely to only make a fuss if it's affecting others, not yourself.) And you are certainly not someone who quits or walks away.
In other words... I think most of those people see you as being least like to become a casualty, therefore, by the time they've expended the energy on everyone else, well... They figure you'll let it pass. Which, from what I've seen, is very true. You try not to raise a fuss and just give it your all anyway because that's who you are. And I don't know if you'd even think raising a fuss about it would be worth the stress, whether to you, or to them.
If it's any consolation, when I'm wrestling with a chat or thread idea I just can't seem to iron out, planning on being somewhere and seeing if anyone else can be, too, or have some kind of Bible teaching or passage I've just read and hashing out, you are one of the very first people I think of -- immediately.
Shoot, whenever I say I'm going to see if "anyone will be around" a place I have to travel to, my mother always asks about you.
So rest assured that in some circles... Well.
What's that old Biblical principle we all know by heart?
In some circumstances, the last -- most definitely become first.