No offense but, how would anyone know that you're speaking more specifically of a compost tea and not just another person asking a rather inane question? If you've really spent much time reading around here then you know there is no shortage of inane questions.
In any event, I'm using a mild blood meal tea for my new hatchlings, but the grow is new and too early to assess results. I am also going to combine a homemade urine fertilizer, as all my research shows that it's actually very very good if used when relatively fresh and well-diluted with water. My issues at this point are more with my source water (well, and very hard with a high mineral content) and I'm now getting that haze on the surface of the soil. Town is too many miles away to reasonably buy water, so I'm waiting for a good day to go hit one of the local waterways and get some surface water.
I may utilize compost tea once our compost pile is going well, at this point it's just too new and too small to have broken down well enough for use. It's certainly a good idea, especially given all the "did I burn my plants?" and "Nute burn!" threads.
As for actually using "tea", you're talking about an herbal tea, and I think you may run into problems if using certain plants. Chemical warfare is well known and documented in Cnidaria spp. (corals and corallimorphs) and I wouldn't be surprised if it is just as documented in terrestrial plants. Also, we cannot immediately assume that good nutritive value for one (humans) equals good nutritive value for the other (plants), so at this point I personally am incredulous as to the utility and efficacy of herbal teas for watering plants. Unless, of course, there's good research showing results.