From alistiar:
i think raising an issue for centralizing deid into a single function would be good - maybe a BIDSDataset.deidentify_dataframe() function. we do this deid in a few places, and it would be good to have it in one centrally tested place. not necessary in this PR, since it is likely better to refactor BIDSDataset to not use so many static methods before implementing this.
From alistiar: