I'm using Re#er 4.1 (and this issue was with previous versions). Problem: on clear VS when I type 're', studio immediately shows popup with 'return' word. After Re#er it just stupidly underline 're' with red "Unexpected token". Sometimes it works as expected - showing popup with suggested words, but again with problem: my 'return' stay at bottom, but damn 'ReferenceEquals' on first place! (never used it).
So... my suggestion: please, pay attention to intellisense and COUNT usage statistic on words (sorting words accordingly).
And fix bug when popup doesn't appear.