Yours is arbitrary because it uses all candle wicks but one for the trendline. Either you do it by closes, or you do it by high/lows, not both.
Actually, not sure if that's a 'hard rule' of trendlines.
Anyway, the triangle looks fine to me. Broke out upwards. Don't know what porcupine's problem is with it... I think he just doubts that TA could ever dominate fundamentals, news, sentiment, etc.