I can only see one of those two posts (the second one) and it’s pretty well reasoned (I don’t agree though, just saying they did provide their reasoning in more than enough words imo). If you’re interested, here’s the link.
To summarize it:
UI worse than New Reddit (I personally agree with it being at least just as bad, that’s why I didn’t go to Lemmy)
Big instances are laggy (remember, the post is from 7 months ago not today, so don’t compare the statement to how they are now)
Bad mod tools (a common complaint I see about Lemmy)
Too much far left and tech focus (another common complaint)
It’s not active enough (yet another common complaint)
Shitty mods (I disagree with the specific claim made about them being worse than Reddit ones, but I’ve definitely seen at least one shitty mod here so far, and too many are neglectful)
Lemmy developers are Maoist (fact iirc)
The community is filled with far left extremists, Mao worshippers, dictator bootlickers, and genocide supporters (the one actually unreasonable take imo which indicates they went to the wrong instance)
I can only see one of those two posts (the second one) and it’s pretty well reasoned (I don’t agree though, just saying they did provide their reasoning in more than enough words imo). If you’re interested, here’s the link.
To summarize it: