And here’s what General Sentiment says about its methodology:
A mention counts both the exact text string and any pronouns that can be attributed to the original topic. The Sentiment Scale is a measure of the tone surrounding a topic. Each mention of a topic is scored as either positive, negative or neutral according to sentiment words such as good, bad, love and hate as well as modifiers such as especially, very and much. The sentiment of all mentions is adjusted daily and applied to an index that ranges from -100 to +100.