I generally use ‘count’ for a counter and ‘idx’ for index.
I’m not using C or Java languages though - if I were I would probably go with the more classic terse approach.
Also, if I’m reviewing a PR and I have to load more of the diff context to understand what a variable represents, then that variable has the wrong name.
I deleted the app and reinstalled. ‘Delete account’ is confusing - am I deleting it from the app or from the server entirely? I feel there is could be a better word to describe removing the account from just the app.