[Келебрин]

1. К тому времени, Нолдор уже почти полностью перешли на Синдарин.
2. Феаноринги сами виноваты. Об этом прямо и говорится: "For Maedhros and his brothers, being constrained by their oath, had before sent to Thingol and reminded him with haughty words of their claim, summoning him to yield the Silmaril, or become their enemy. Melian counselled him to surrender it; but the words of the sons of Fëanor were proud and threatening, and Thingol was filled with anger, thinking of the anguish of Lúthien and the blood of Beren whereby the jewel had been won, despite the malice of Celegorm and Curufin." (Сильм, глава 20).

А в "Квэнта Сильмариллион" 1938 года сказано ещё более определённо: "For Maidros and his brethren, being constrained by their oath, had before sent to Thingol and reminded him with haughty words of their claim, summoning him to yield to them the Silmaril, or become their enemy. Melian counselled him to surrender the jewel, and perchance he would have done so, but their words were proud and threatening, and he was wroth, thinking of the anguish of Luthien and the blood of Beren whereby the jewel had been won, despite the malice of Celegorn and Curufin." (HoME vol.V, Quenta Silmarillion, 16 Выделение моё, - К.).
3. В "Лэйтиан" (в набросках) упоминается о том, что войско во главе с Тинголом разгромило отряд орков во главе с Болдогом (примерно в то время, когда Лютиэн находилась в плену в Нарготронде). Это войско возглавлял лично Тингол.
4. Высокомерие - обычная черта большинства королей. Его панибратское отношение к примеру, к Берену смотрелось бы гораздо более странно.