I used to post on the subreddit I want from my previous account. It didn't face any issues, and I can even post from it now without encountering targeting filtersIf comments are going through but posts aren't, I'd look at the subreddit itself first. Many NSFW communities manually review posts or have filters that remove them before they become visible. Doesn't necessarily mean Reddit is targeting your account.
I am not sure about the rules for explaining such things, but I will try. I usually post NSFW RP posts on one popular sub. At first, it wasn't so good. I made a post with some comments, and it was deleted by the filters. I messaged the mods, and they restored it and recommended me to verify my email. I did that, and I could post again. But the next time I tried, it was deleted again, even though the comments were still working.Can you give a bit more detail? What exactly is happening? Can you attach a screenshot?
ik about rules and etc things. Also I can't say that 350+ karma is very little for the age of 11 daysEach subreddit has its own rules and policies, so make sure to read them carefully and follow them. Also, keep in mind that posts from new accounts or accounts with very little karma are more likely to be removed.