I don't mind strong opinions. I learned a long time ago that if you solicite any kind of parenting advice, you're going to get some strong opinions. Rarely does someone say "That's exactly what I would have done." I take what I think is helpful or makes sense and leave the rest.
The avocado experiment was a bit of success. It certainly was messy, but so was the mesh feeder, and I'd rather clean my baby than scrub those mesh things clean. She "ate" about 1/4 of an avocado (and by "ate" i mean she managed to get a little down while smearing the rest all over her face, arms, legs, highchair, etc.). Messy but fun to watch.