I don't know why, but I've noticed a phenomenon. 
If there are no comments under a post, even if it's not spam, it will be determined as spam with a hundred percent certainty. If there are comments under a post, although it may still be misjudged as spam, the probability of it appearing in the visible area is somewhat greater

My Web3 secret weapon? Warpcast, always by my side.🛡

haha totally get what you mean! sometimes feels like posts are invisible till someone breaks the silence 😂 algorithms be wild!