On first checking things out, I loved how the nasty responses common in reddit threads was very rare here. Arguments here are commonly well thought out and give the benefit of the doubt. As more redditers switch over, they're bringing the vitriol with them.
Also posting article links from Reddit. I prefer when the poster writes their own synopsis of what the article is about and why it's important. Links from Reddit tend to just repost the click bait garbage from over there.
Do we have any user base statistics for the average age of users for Lemmy compared to the ever growing younger user base of Reddit? (Which isn't necessarily always a bad thing, I love inclusiveness).
I can't recall being asked to put in my birthday/age when signing up. (I'm just being genuinely dumb, I would usually just look up this stuff myself but I have to rush this comment, sorry!)
People don't seem as flippant on Lemmy which is fortunate.
I have generally had a better experience when it comes to interaction on here, but I do think there's frequently degrading comments towards Reddit users, especially ones starting out and posting content directly from Reddit.
I think it's all usually well intentioned though, they're looking for alternatives, and they wish to get involved and add content.
Eventually Lemmy will become more self sufficient when it comes to unique comments or memes for example, but there's a lot of growing pains to get there.