One more consideration: if your goal is preventing the ISP from seeing you run a node at all, tor alone isn't sufficient — your ISP still sees the tor connection itself and can correlate timing. For full cover, combine tor with (a) running the node on a VPS instead of home IP, or (b) using a bridge/snowflake to mask the fact you're connecting to tor. That's the difference between 'ISP can't see my peers' and 'ISP can't tell I run a node'.