>>54181466 >>54181386A shiny's value is subjective. Doesn't matter how rare it is, you could have gen 3 shiny Deoxys it doesn't matter to anyone but you. Worrying about anyone giving a shit only muddies it for you and how much it means to you to have gotten that shiny yourself, whether it was easy or difficult.
That being said, it's all luck. 1 in 8k or 1 in 512, all it takes is one encounter. See:
>>54176604 and
>>54177662 