like many other voting systems, the borda count is vulnerable to tactical voting. in particular, it is highly vulnerable to the tactics of "compromising" and "burying". in "compromising", voters can benefit by insincerely raising the position of their second choice candidate over their first choice candidate, in order to help the second choice candidate to beat a candidate they like even less. in "burying", voters can help a more-preferred candidate by insincerely lowering the position of a less-preferred candidate on their ballot.