I’m confused because you’ve posted several threads in the last few months that seem to indicate that SpamSieve is working well.
Did this suddenly change? Or do you no longer want the spam messages to go to Junk?
We discussed this before, and I explained how you could make the ones from repeat senders go to Trash instead, but you said that you didn’t want that.
You also previously wrote:
Mail rules are applied before SpamSieve, so it sounds like your rules are not set up correctly to match the messages in question. That is not a SpamSieve issue.