I'm new on nostr. Thanks for suggestions
Welcome!
Few things you should know:
1. get a check mark in #Nostr, there are few options, I suggest nostrcheck.me, once you get it, edit your profile and update your Nostr-Address, not having it will hide you in some clients
2. follow hashtags, a good way to find like minded people
3. think of your nsec as your Bitcoin private keys, act accordingly
4. chose a client that respect your privacy, meaning, you can sign in with a Signer protecting your nsec, it has TOR built in and above all, you can manage the relays you use. I suggest nostr:nprofile1qqs24yz8xftq8kkdf7q5yzf4v7tn2ek78v0zp2y427mj3sa7f34ggjcpzamhxue69uhhv6t5daezumn0wd68yvfwvdhk6tcppemhxue69uhkummn9ekx7mp0qyg8wumn8ghj7mn0wd68ytnddakj703s8dt t
5. add your lighting address in the profile so you can get zap, few options out there, I suggest nostr:nprofile1qqst4qyeqenw7zm0fwjsty68h6cnys5jre2xd8ngqpjv5a2j26s78fspzemhxue69uhhyetvv9ujucm0d9hx7uewd9hj75a0pev for most people
have fun!
Discussion
you don't need a check mark to use nostr. You just need a client that allows you to select the relays you want to use.
true, however, relays and some clients may shadow ban you if you do not have one.
The probability of an user being a bot gets reduced if there is a check mark, the check marks are free in most cases but they involve few steps that would make it harder to create profiles in large quantities by bots and start spamming the network. The pay ones add more value to the WOT since is even less likely is a bot