An observation generally includes what was done without judgement. For example, I see @buildawhale voted on your post. That is an observation.
A judgement or position is one that can be debated or argued with including whether what is observed was right or wrong. Labeling as a spammer for buying snake oil votes is one way of looking at it. Another is advertising what is a valuable project for our blockchain in my opinion using the established methods for marketing a post here. Neither position contains the whole truth and both can be argued with. You have a valid point as do I. I both agree with you and disagree with you.
You might enjoy the book Nonviolent Communication: A Language of Life by Marshall B. Rosenberg as I did because it helps separate what we see/observe from what we think of it which is a very valuable skill!