Doubt about threshold values used in VADER categorization

[rashktech]

Hey @cjhutto , based on the "About the scoring" section: https://github.com/cjhutto/vaderSentiment#about-the-scoring

"Typical threshold values (used in the literature cited on this page) are:

positive sentiment: compound score >= 0.05
neutral sentiment: (compound score > -0.05) and (compound score < 0.05)
negative sentiment: compound score <= -0.05
NOTE: The compound score is the one most commonly used for sentiment analysis by most researchers, including the authors."

Can you please explain why -0.05 and 0.05 are used as threshold values to categorize the compound scores as positive, neutral and negative? Thanking you in advance.