The main thing is to not skip TL0 and TL1. You can disable TL2 / TL3 without any risk, but you give up on some automatic community moderation features. TL4 is manual promote anyway.
The main thing is to not skip TL0 and TL1. You can disable TL2 / TL3 without any risk, but you give up on some automatic community moderation features. TL4 is manual promote anyway.