Today you can send your coins with
3sat/vbyte and it will be confirmed probably a hour, why you need to looking for other option?
That post was from 2016. Needless to say, that post was wrong. Bitcoin is still here and growing and thriving. It didn't fail. It is continuing its path to becoming the humanity's alternate currency.
Yep, that was when Bitcoin worth less than $1K and most people are still doubting Bitcoin.
Even after Bitcoin made new ATH in 2017/2018, people are still doubting Bitcoin because they said Bitcoin will be Tulip 2.0.
But, after Bitcoin can made new ATH in 2021 and now Bitcoin again made new ATH in this year, there are no more Tulip 2.0/bubble FUD anymore, the market is already strong enough.