I think it will depends on how popular you are and what's your power/position on that's project.

If you're the owner, co-owner, or someone that built the project from the start, high likely you will need to face legal problem if there's a police sanction or take down the project.

If you're very popular person and everyone recognize your name, face, etc you could be follow the same path like I previously said.

But if you're just advertise the project using your account in this forum and there's no personal information you've give to anyone, IMO you will be safe since there's no way to verify you.