Current CFW and Questions about bans

Hi, I have recently come back to the scene.

1. I am using Rebug 4.84.2 DEX currently, and can sign into PSN, is this safe to do so?
- If you have been using DEX and logging into PSN from older firmwares have you been banned faster?
- Or have you seen better chances of not being banned by using latest CFW (based off latest OFW - currently Evilnat 4.89)?

2. I have seen some people only changing PSID, I always change PSID plus CID or has this changed?

3. Does webMAN change PSID/CID...

Current CFW and Questions about bans