What stood out the most to me was when everybody left Reddit and came to Lemmy that everyone helped each other to get settled into Lemmy and the Fediverse - at least where I settled. Knowledge was passed down. More tech savy users answered the questions of new users patiently. Everybody was (and still is) polite in general and it is a pleasure to participate in such an enviroment.
I experienced (and I still do) much more "adult" behaviour within Lemmy, compared to Reddit. I barely have to downvote comments due to bad/ malicious behavior. I think I have had to downvote 3 times within the last 8 months - and one downvote was dedicated to a bot which summarized some news content wrong. Here you can have nice discussions and most comments actually contribute. Less "This"-comments.
I like that Lemmy in general is more left leaning, and also more tech savy. Also, I experienced less gatekeeping than on Reddit - at least, within my home instance. Your experience, however, may differ.
Ist halt eine sichere Möglichkeit, Geld einzunehmen. Wobei ich denke, dass dies nicht von den Supermärkten und Discountern direkt ausgeht. Wahrscheinlich ist es so, dass es Anbieter gibt, die diese Parkraumüberwachung an die Supermärkte vermarkten, wegen der "Sicherheit".