EvE community can be toxic. Gankers, griefers, scammers, bullies, extortionists (is that a word?) and other unsavory sort galore.
New Eden is a tough place to live in, and outsiders or new players can face a rather harsh crosswind.
But the thing is, players are usually rather harsh to outsiders of their own circle, and it doesn’t matter if it’s a highsec mining corp or a pirate band waylaying everything coming through lowsec - friendly towards their own, but standoffish or downright hostile to others.
My advise to newbies would be to stay off of Local or the (NPC) corp channel but do engage yourself in the Rookie Help channel. Even if you’re just four days old there’s still someone asking the question you’ve solved for yourself.
Next to it, there are returning or old players creating alts - so not everyone in that channel stepped right out of the bus. So Rookie Help could be a good place to form stable, long-lasting contacts.