From D&D Wiki
This pages compares the similarity distance
(not to be confused with a semantic or lexical similarity) between property labels and reports them if they exceed the threshold. The report may help filter misspelled or equivalent properties that represent the same concept (see the properties
special page to help clarify concept and usage of reported properties). The threshold can be adjusted to widen or narrow the distance used for the approximate matching.
is used to exempt properties from the analysis.
"3e Ability Score Adjustment",
"Ability Score Adjustment"