[Eugenia Gabrielov]

I'm going to go out on a limb here and say that I think in some ways, highlighting a "negative aspect" could actually be a helpful situation, but I think I will expand on Arefin's great statement and say this:

Every complaint you write reaches someone's ears, but if you really want to make a difference, you need to change your gripes into suggestions, into statements with reason and suggestion, instead of leaving your audience with basic criticisms sans actual reason behind them.