Meme coins need a lot of promotion to be in demand. Binance is a good platform to attract attention 
Definitely! Once it gets listed on Binance, people will automatically start trading it. With all the hype around meme coins, the biggest winner here is Binance as they keep making money from trading fees. More volume means more fees, so they don’t really care if a lot of traders end up losing on meme coins.
The trick here is that after listing meme coin on Binance, they make people that doesn't like it justify it that the listing is something they have did their own research on and they make sure the coin is pump. So I think Binance becomes the market maker to pump this coin to draw the attention of traders to join the run and after buying the coin at low price, they sell it gradually at the top making their own profits and at the same time making money from trading fees.
I don't blame Binance though, it's people that are greedy for anything relating to money. If Binance list a coin and people don't go there, they will not make money from listing fees and I'm sure they will not repeat such kind of listing again but people don't care, as long as it brings money to the table, they are definitely ready to set any amount of dollars to yield profits whether it's meme, it's a new coin or any related coin for profits that's why people don't really care about the tech.