Taeyong's Adorable Skills

In the Korean comments

One top comment reads, in translation, “I clicked because the title made me think this was a fan account, but it’s NCT 127,” then calls Taeyong “legend-level trendy” and says the group’s signature “neo” quality remains intact.

What the words mean

“윗물이 맑아서 아랫물도 맑구나” (the upstream water is clear, so the downstream water is clear) plays on a proverb about those above setting the example for those below. Here, it is a playful, affectionate compliment suggesting that NCT’s appealing character flows from the top down.