Quote from: engineerjj2008 on August 18, 2018, 04:53:23 AM

Can you kindly enlighten me on how to delete my post from bounty thread in order to change my trust level? I await your kind response. Thanks

Very simple, check reference on your trust page. According to reference you got red tag for below quote.

Quote from: engineerjj2008 on August 10, 2018, 08:14:43 PM

#Proof-of-authentication:
Bitcointalk username: engineerjj2008
Joined campaigns: Facebook/Twitter/Telegram

Although marlboroza given warning there you participate on bounty,

Quote from: marlboroza on August 10, 2018, 12:34:38 PM

This ICO is scam.

More details can be found here https://bitcointalk.org/index.php?topic=4855530.0

Member who continue to advertise this ICO after this post will be tagged with negative feedback.

Delete your all reply from REGIXIUM bounty thread and also delete all promotional post from social media than pm to marlboroza, may be he will delete his feedback.
Or better follow Negative trust removal guidelines for those advertising fake/scam ICO's posted by marlboroza.

If you don't know how to delete, check right corner of your post. There is delete option.