Hard to do decision

Today, I had to something that was very hard for me to do. I had to admit that i was involved in something that was just too much for me. With all the surrounding circumstances it only made my decision more difficult to see through the fog. I just wanted to make a clean break from something that was taking so much of my time with very little reward for the effort. So I made the decision I left the team the first team I was ever involved in. What made me sad is there was no indication that they had even received my resignation but when I went to make the final click that i was leaving I realized that someone had deleted my last thread. not just closed it but deleted it as if it was even there. I really don't know what to think of that. But I guess I can take from the action is that was not what they wanted and so they removed it and I went with it?? I don't know. It seems strange, no response at all, but to delete a thread?