Why do you think it's inaccurate? Are the villagers that you mentioned popular in the Villager Trading Plaza? Are there a lot of people looking for them, or maybe threads that offer to sell them have a lot of people interested in it? If so, you can reply to that thread if you noticed those villagers have been popular. It would certainly help the list to be more accurate
The list isn't really a most-liked list, iirc, but based on how those villagers do in the VTP board. For example, Kiki was really popular last Halloween. A lot of people were looking for her and threads involving her had a lot of response. A few people pointed it out and as a result, Kiki got up really high in the tier list. Basically, the list helps you point out how well they are in trading. They higher they are, the more likely that you'll find a buyer who will pay a lot of them. It's not saying that the lowered tier ones are worthless, just that they don't do well in trades and it takes a long time to find a buyer/taker for them.
TLDR the list is to help people determine which villager would sell a lot on VTP. I'd like to add that it's based on trades happening in TBT only, not including reddit, gamefaqs, tumblr, etc.

The list isn't really a most-liked list, iirc, but based on how those villagers do in the VTP board. For example, Kiki was really popular last Halloween. A lot of people were looking for her and threads involving her had a lot of response. A few people pointed it out and as a result, Kiki got up really high in the tier list. Basically, the list helps you point out how well they are in trading. They higher they are, the more likely that you'll find a buyer who will pay a lot of them. It's not saying that the lowered tier ones are worthless, just that they don't do well in trades and it takes a long time to find a buyer/taker for them.
TLDR the list is to help people determine which villager would sell a lot on VTP. I'd like to add that it's based on trades happening in TBT only, not including reddit, gamefaqs, tumblr, etc.