It was my understand that a subject title had to be at least 15 characters....not that it was limited to that.

And 15 characters seems very arbitrary ;-) Another little Houzz annoyance.

Ok. I misunderstood another poster's message. Should've read the rubric.

Probably has to be 15 alphanumerics including some spaces; special characters would not count, like: Help!!!!!!!!!!!!!!! or what's this???????????