Why did the original source leave the index after sharing the article?

Question

Google

Let me know, this is the first time I've encountered this.
I wrote the material, posted it on my blog (the blog is on a separate domain, completely in the index - no viruses, saves and a bunch of outgoing links), waited 3 weeks until the material goes to Yandex and Google for sure (in Yandex, additionally added through "Unique texts" in webmaster).
Further, in order to distribute the content, I posted the material on spark.ru, from there it spread throughout the network (now I found several more sites with my article copied).
And lo and behold - I check the uniqueness of the article in the search (I drive in pieces of text from different paragraphs, etc.) - my blog generally flew out of the index, there are many sites in the search results besides my blog! Spark is in the first place, followed by other people's blogs, also from my article (copied).
What kind of joke is this?) Has the uniqueness gone to a site that is higher in authority? How then to do in the future?

Answer 1

Now search engines are loyal to non-unique material. If copy-paste is in demand on someone else's site and it has good behavioral factors, it will sit in the search results in leading positions. Search engines do not take into account the uniqueness of the text itself, but its completeness, the presence of added value and formatting. Increase the trust of your resource, win the audience and your material will be in the TOP.
Most likely, your site will not be thrown out of the search, but is only on 2-10 pages for the search queries.
For faster indexing, you can use the farm's twitter. If necessary, I can give contacts of a good artist with very reasonable prices.

Answer 2

Try to write a request through the Yandex webmaster, what will they answer you?