@wanttohaveabigheart, you feel scared, because you don't know what happened. You feel anxious and physically ill when you think about what happened. You are afraid to speak up, because you fear you will "disturb the peace" or even get punished by asking questions and raising the issue.
Loveliest, I am so sorry that you lost the sense of peace of our community. That this place isn't a safe seclusion for you anymore. I am sorry, because we are all here to support each other, and act in the name of compassion and kindness.
I really believe, wonderful, that if you ask the community team for explanation of deleting the given thread, they will reply to you. And it will bring you some answer and will certainly follow some peace. You should never be afraid to raise your voice, because you have every right to ask questions and tell us about your concerns. It is in our power to shape this community as the most loving space on the Internet, and you, feeling so worried and low, doesn't make any step towards that goal.
If you still feel overwhelmed and anxious, I can help you write an email to the community team. You are not alone, ever. And I would be sad, if you'd decide to leave for good our community. I am here for you, and so are many of others. We care about you.
*hugs*
All my love!