If your comment was intended to be a response to someone else, it should have showed up in a subthread, not as a separate comment, directly under the OP.
If you are just semi-randomly posting replies directly under the OP, they are unlikely to be seen by the person that you are replying to.
Huh. Doesn't appear to be orphaned in my browser. Maybe you're being gaslit.
If your comment was intended to be a response to someone else, it should have showed up in a subthread, not as a separate comment, directly under the OP.
If you are just semi-randomly posting replies directly under the OP, they are unlikely to be seen by the person that you are replying to.