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From the earning point I discovered I can earn more just by delegating and they are new on the platform and their resource credit was low, so I thought it would be nice to help since they complained of being short of resource credit.

haha yeah, right! You dont earn anything by delegating to them!

Delegation does, if you use ecency app and you click on the wallet icon beside it is delegation and thy attached point to it

No it doesn't earn anything if you delegate to other users...anyway...here is the discord message you said you never received from Hivewatchers explaining that you were granted an appeal...
https://discord.com/channels/333959953951752194/441322865212784640/998198084200833084

I tried reply but kept being unsuccessful

I was confused from the first paragraph because my account wasn't up to 3 months. I accepted my fault and I did write what I was told to do.
But I can't comment on the community which I still don't know why

Communities have their own admins and are owned by members. They can decide who can post and who can't. That is totally separate to Hivewatchers.

Alright thanks really appreciate. So can I keep publishing article till I'm remove from the blacklist?

Hive is about original content, not spun articles anyone can find. if you do reference material then source it. You may wish to explain this to your 'cousin', too...

I noticed spammintor keeps downvoting me but I just thought it was normal since some are still up voting.
How did you know I was blacklisted?