A profile made entirely of enemies tells you more than a flag ever could. Notice whether someone can describe what they love without immediately describing who they hate.
What matters in practice
Be cautious with requests for money, rapid declarations of love, refusal to video chat, inconsistent service claims, and pressure to move off-platform immediately.
Patriotism never excuses threats, racial supremacy, coercion, or dehumanising language. Leave, block, and report when a conversation crosses that line.