Is this really a problem though? It would seem "Romanians are ___" is a rare search term as it is--the negative terms are likely old and low-frequency, especially in comparison to this recent surge in positive queries.
That's if you're competing in your own niche. What if you wanted to positively influence the search results that came up for your company? "igul222 i buy so much in a year that i want a discount" "igul222 write testimonial" "igul222 frequent buyer program" "igul222 secret promotion"