At present, the reputation threshold for creating new tags is at 300, making this accessible for relatively new and inexperienced users. A lot of new tags created now (2022) are unnecessary, or simply misspellings or new names for existing tags. One of the last ones I nuked was stoch.
A low threshold was necessary when the site was young, to populate the tags! but those days seem past. Some sites have increased the threshold, like
Math SE (1000)
while some others keep it at 300 (Tex/LaTeX, MathOverflow).
I propose we ask SE to increase the threshold to 1500.