>>73366This is pretty much it. Also for use in generally attributing a number of replies to one individual where it may be necessary.
Example of good usage: A drawfag who draws something new and post it in a thread with a tripcode, but posts anonymously throughout the rest of the thread and other threads.
This kind of usage affirms that any post with that particular tripcode is essentially 'tagged' to be fresh OC, which is helpful knowledge, or some follow up remark where the drawfag needs to identify themselves.