For about a month, the space used has not increased. Let me explain. I am around 480 GB, I will gradually increase (About 5-6 days) to 497 GB and systematically I will go down to 477 or 475 GB with a lot of data in the bin. When I look at the logs in the terminal nothing seems abnormal. Bandwitch and Egress seems normal (Compared to the amount of data on my disk)
If you are not suspended or disqualified and your node keeps being online on all satellites it should be fine.
I guess this is the current pattern every SNOs or most of them are seeing.
I could imagine that a customer like this could have such a usage pattern.
But it could also be some other customer testing the network (uploading, downloading, deleting) in preparation for migration. Which is a really nice thought.
But really as SNOs we never know. Basically it could be anything.