As the title says, what about UTAU (fandom or software,) would you want all newcomers to know? It can be more than one thing, just in general. What do you want all newcomers to know when they start using UTAU?
Personally, I'd tell them to not get discouraged and watch who they vent to. You can't trust everyone, but there are people out there who will listen. Venting to the wrong person can get you in one heck of a situation. With that being said, it's not ok to keep it all bottled up. Join discord server and make friends with fellow users. Fellow users are the best way to get help with pretty much anything.
If I were to say anything to a new tile user I would say
1. Don't be afraid of not making a perfect vb. You use the knowledge you've obtained from working on them to improve your future releases.
2. Go at your own pace. Everyone works at their own speed, and if you put a lot of time in your work, it will show.
3. Don't be afraid to step out of your comfort zone. That's all a part of the fun!
4. Take breaks if you need or want to. If it's not fun, then why do it?
5. Make friends but don't trust them completely right away because some people just want to steal from and/or take advantage of you.
6. If you're going to ask for concept art, and oto, etc. for a vb, make sure you give the person doing it something in exchange. Otherwise it's just not fair.
7. Do your best to not seek attention. It won't be fun and it will only lead to frustration, and you probably won't get the attention you want.
8. Always put your real life before your status in the Utau community. Good people will understand if you have to leave because of a super important thing happening IRL. If they complain, then they aren't worth paying attention to.
9. If someone gives you constructive criticism, consider taking it. If it's real constructive criticism, then it's meant to help you, not tear you down.
10. If you didn't make something you're using, ALWAYS credit the person who did. I don't care if it's a song, UST, remix, voicebank, piece of art, etc. CREDIT THE CREATOR.
Wow. I actually had a lot more to say than I thought I would. Maybe I'll make a YouTube video to elaborate on each one.