Termites are high in protein. If you could find a safe source of them would they be appropriate as a supplement to the diet of Knob tail geckos and other herps? Opinions Please
sustainability
needing a queen that can live up to 20 years laying 1000 eggs a day
providing them with a large escape proof container (termite mounds get meters high and thats only a part of the hive)
keeping them fed and usable as a healthy food source (huge quantities of chemical free cellulose)
feeding a warrior rather then a worker and you pet getting injured (they would do way more damage then a cricket)
I don't see that they would be any where near worth the time/effort required to keep them.
wild capture would very likely leave you with some parasite/fungal/bacterial/environmental poison issues at some point...
as noted in the article I linked its a consideration for poultry (warm blooded animal) and fish farms very high quantity, probably in the hundreds of pounds of food a day range applications.