Wikivoyage is a transparent project, so we don't deny that we prevent several non-constructive user actions with abuse filters. These filters are not designed to limit the right of speech, the expression of opinions or even linking to other pages. There are a number of filters in use. If you feel that a filter is not compliant with our policies, please start a discussion on the talk page or the travellers' pub.
If your edit was disallowed for no good reason, try to contact an administrator. An edit on your user talk page, with full sentences and without any URL or heated language, might have the best prospect of getting through, if there is a draconian filter in place (probably by misconfiguration). Give an edit summary that states that you want attention from an admin.