My initial reply post "failed to post" per Yahoo. It suggested I check out "tips for posting." After doing so, I removed some of the same numbers I supplied in my first post. After the change, the post was accepted.
So, the obvious question is, if Yahoo can recognize such a post as "unacceptable," can it not also recognize the pattern of "spam" posts and their subsequent spam replies that the rest of us can easily recognize? Why are those viewed by Yahoo as "acceptable?" Those posts should be stopped with a notice of "failed to post" as I experienced. A live person at Yahoo might even send a private message asking us "how DO you recognize those spam messages so easily? What program do you use? What words do you recognize that give away so easily that those posted messages are spam?" If I got an email from them, I would tell them, as I have several times in response to their solicitation for "suggestions on improving the message board" which appears on the message board as a link to click on..