@Manoj
The same has happened to me one week ago. Within minutes, 8 posts I had written over a period of several months had been flagged as “spam”. Yes, all of them contained links, but nothing duplicated. And in my opinion, all of them had been on topic (with the exception of those post I had written while performing the tasks in the tutorial for the forum).
For instance, Synchronise default email app automatically had turned out to be helpful for the original poster.
I believe, it started with a misconfiguration of the automatic spam detection: when I wanted to include a link to a page in the codeberg-dot-org (trying to avoid links) repository of the Corona Contact Tracing Germany app in one week ago. I was informed that linking to that site is forbidden (for whatever reason), so I just copied the URL. After that, all my posts which included a link were flagged as spam.
After contacting @patrick one of the hidden links had been made visible again, but the others are still hidden.
Kind regards
Ingolf