Explain for the #newbie masses why no one should log into a nostr client with their nsec directly
Your nsec is your account. Evil clients can steal it, dumb clients can let other people steal it.
How does one log in without using their nsec directly?
I use nos2x: https://chromewebstore.google.com/detail/nos2x/kpgefcfmnafjgpblomihpgmejjdanjjp There are similar plugins for firefox (but I can't recommend one). I think alby works too.
how else do I login?