Anarchists are against *institutions* of domination and hierarchy.
You can argue all day and all night that people use domination or power or coercion or other words that anarchists are supposed to find objectionable, but it really says more about you than about others.
Sure anarchists are just like other people, and are therefore capable of exerting all kinds of pressure on other people. What differentiates conscious anarchists from others is that most of us understand that our ability to exert various levels of force upon others is not necessarily the best way to operate. We can make a choice about the appropriateness of domination or other forms of undue influence because most of us understand that it is conditional and not backed up by any legal authority. Anarchists have to accept the full consequences of exerting that sort of domination, while others can always rely on the state to back them up if somebody objects.
If you try to throw around whatever weight you might have in any given situation, then you can't complain when others ignore you or resist. In short, if you're an anarchist who's an ass, then other anarchists and non-anarchists are correct to treat you accordingly.