Now I am just getting back into the hobby so take what I am saying with a grain of salt. I am sure there are others here with more current info, but I don't think snake behavior has changed that much.
I used to own an emerald tree boa that did this. I was able to convert her to frozen/thawed but it took some work. I needed to "reheat" the mice under her basking light just prior to feeding. She went for my fingers a few times as well. I ended up putting on a glove, not because I was afraid of being bitten, but to mask my own heat signature. Once I did that and provided the mouse with a proper zombie dance she did fine.
Dave
The post you just quoted is over a year old.
KMG
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