Somebody else is using your cheap routes and liquidity to adjust their liquidity, obtaining better profits. It's a trick of professional public node runners, that plebs ignore it. They are literally used. Moving liquidity means profits in sats in the public routing world. Each route is a potential gain. But if you do not know how to do it properly, others will take advantage of you.

And this is what I am trying to warn OP, but he ignores my advice and get cocky...