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• I use esteem and know how to use the points. It’s worth the effort. (Please tell me more.)

It is worth it. At least the boosting. I am regularly boosting my blog posts with eSteem Points (ESTM). I also tried post promoting, but that is not worth it in my opinion.
I write a short guide on post boosting with eSteem Points (ESTM) down below:
How to do post boosting (on eSteem Surfer 2.2.0):

• First, click on your profile picture on the right side of the eSteem Surfer.
• Second, click on "Profile".
• You will see your blog posts. Check the "promote | boost" buttons above the blog posts on the right side of the eSteem Surfer 2.2.0 application. Or click on the blog post you like to boost, then scroll down to the end of the blog post, then you will also see the "promote" and the "boost" buttons below the "Reply", "Edit" and "Delete" buttons.
  You currently need at least 150 eSteem Points (ESTM) to boost a blog post.
  Boosting a blog post with 150 eSteem Points (ESTM) currently gives an upvote worth about $0.312.
  The maximum amount of eSteem Points (ESTM) you can currently use to boost a blog post is 2500 eSteem Points (ESTM), which currently gives an upvote worth about $5.193.
  You wrote that you have over 1500 of these in your account.
  1500 eSteem Points currently gives an upvote worth about $3.116.
  They may change these values in the future. I mean both the amount of eSteem Points (ESTM) and the upvote values, but you can calculate with these values as of 2019.10.01, 22:45 CEST.
  The last feature (get delegation for ESTM) is not yet available. That is still in development.
  I hope this short guide is useful/helpful to you and to others. Good luck!