Oh no, Kurt. Certainly nothing as serious as a hornet's nest . .
I just got a little 'bee in my bonnet' back when I started that thread, and when I followed up on it, it turned out the hype on the label was all balderdash and there was no solid research showing positive results from SuperThrive and some harmful ones.
Lin, I do remember paying $8.95 for the 4oz. bottle of SuperThrive at least 5 years ago. As I said, a couple of new plants or a nice little orchid . . they look like a better value to me.
Now, the Silicon stuff we discussed at the end of that old thread, I do think is making a difference.