Anthracite raises an excellent point in a different thread and rather than hijack my own thread, well, you get the idea.
Does anyone “own” a thread? If the thread goes tangentially but relevantly off topic, does anyone have a right to try to “steer” the thread back to the OP?
IMHO, “Truth in advertising” requires us to keep the thread somewhat on topic in deference to those who might come to the thread late, read the thread title and find it has gone in a direction irrelevant to the OP. Beyond that, I think we should be flexible.