Hmmm. Interesting old topic and yes I would like to hear how it turned out.
Was just reading an article in a newsletter on worm tea's. Said addition of certain acids caused the microbes to go dormant, listing citric acid as one possible additive. Once applied it is said the microbes reactivate. I don't know about all that.
While I feel for the little guy in any big corporate dispute, I still opt to teach people and encourage everyone to make their own. It doesn't get any better than that. If you go to all the trouble or joy, whatever the case may be to start a worm bin, feed and raise the little buggars then why not take advantage of all they have to offer and learn to make your own castings/compost tea? Just add water and aerate.
