If you go to the community, there is a modlog, which contains the log of moderation actions. Just checked and I saw post being removed about 10mins ago, due to rule 10: account is less than 7days old.

Welp, you might have to wait or post in another community (btw, there are many technology communities across instances).😅

From the modlog (https://discuss.tchncs.de/modlog?userId=18977288)

Rule 10, account age is under 7 days.

Also, welcome to Lemmy, here are a few pointers to help you settle in

• [email protected]
• [email protected]