(Just because nobody replied yet so I will LOL) I was seriously interested in dendrophila at one point too and did some research. I guess there isn't enough studies on their venom's effect on people exactly, but overall for rear-fanged snakes, it just depends on the individual's reaction and if they have an allergic reaction. Supposedly, their venom is the most potent out of all boiga though, so should be taken more seriously- but that's anecdotal, I think, unless anyone has research articles on it.