Amsterdam (tca/dpa) — For people who live in particularly picturesque quarters of charming European cities, the words “Instagrammable” or “Tik-Tok famous” can feel like harbingers of doom. Or harbingers, at the very least, of intense annoyance. Across the continent, this has been a summer of visitor-related discontent. The stresses of overtourism sometimes spur irate displays directed at outsiders — such as attention-grabbing anti-tourist protests in Barcelona last month, with demonstrators wielding water pistols, or hostile graffiti popping up in places like Athens. In some of the more iconic…