This is pretty interesting. The topic seems to be "Is it wrong to idolize Koreans? Why not stan local (Taiwan) idols?"
The ranking on the board says "Ranking of most popular idol groups in Taiwan"
1. Super Junior 22%
2. Exo 16%
3. SpeXial 15%
4. Soshi 13%
5. Shinee 10%
Around the elf part, they were talking about how usually younger groups would have more young fans to actively vote for them online. But suju is different, their fans are very dedicated despite being an older fandom.
One of the male host said he's liking suju more and more because of their individuality and even the initial unpopular members would eventually stand out and have their own thing. He praised them more to say that they have members in all areas of entertainment, and everyone have their own purpose in the group.
Skimmed through the clip and these are what stood out to me ^