I'd also like to have seen this account with a lower spam score, and higher bot score. I will add it to the bot training set. ;)
These factors you mention are included in the rating, but the accuracy and effectiveness is limited by the training set, which I'm in the process of expanding.
I see! Thanks for the feedback... expanding the training data by reasonable but not too biased examples will be the major challenge (as it seems to be with AI).
I'm curious to see how the detection will improve over time. Thanks a ton for the efforts you are making on this!