The responsibility is with the universities and institutions of those researchers. It is hardly possible to do anything from outside. The problem is that it is not easy to estimate the quality and innovative potential of research. Instead, stakeholders take numbers (number of publications, number of citations, h-index, etc.) as seemingly "objective" criteria. This opens the door for fraudsters. See also these previous discussions:

https://www.researchgate.net/post/How_many_original_research_papers_can_one_publish_in_one_year_as_first_author

https://www.researchgate.net/post/How_big_of_a_problem_is_scientific_misconduct/1

https://www.researchgate.net/post/Should_scientific_fraud_be_handled_as_criminal_offense/1

https://www.researchgate.net/post/Lets_talk_about_some_bad_practices_in_Research/1

https://www.researchgate.net/post/Do_you_know_what_a_paper_mill_is/1

https://www.researchgate.net/post/Fraud_by_Numbers_Metrics_and_the_New_Academic_Misconduct/1

https://www.researchgate.net/post/Are_federal_funding_agencies_insensitive_to_data_fabrication/1

https://www.researchgate.net/post/How_to_address_academic_dishonesty_and_pressures_to_complete_PhD/1

https://www.researchgate.net/post/In_your_opinion_dont_we_need_a_World_Prize_like_Nobel_Peace_Prize_to_discourage_Frauds_and_misconducts_in_Sciences/1

https://www.researchgate.net/post/Unethical_ways_to_increase_citation/1

https://www.researchgate.net/post/Authorss_citation_cartel-Anyone_seen_or_heard_about_it/1

https://www.researchgate.net/post/New_scam_Do_you_want_to_be_paid_to_cite_others_research/1

https://www.researchgate.net/post/Can_plagiarism_be_completely_prevented_in_the_academic_world_If_you_think_it_can_or_cannot_be_blocked_Why/1

https://www.researchgate.net/post/Academic_Fraud_beyond_FFP_Yes_No_or_Anything_Else/1

https://www.researchgate.net/post/Research_Ethics_in_Publishing/1

https://www.researchgate.net/post/Can_open_science_decrease_scientific_misconduct/1

https://www.researchgate.net/post/Unethical_behaviour_in_research_publications/1

The inflationary increase in the number of publications is one of the method to increase the number of citations. See these discussions with criticism of the misuse of citation numbers, h-index etc.:

https://www.researchgate.net/post/Petition_Stop_Tracking_Science/1

https://www.researchgate.net/post/Your_opinion_about_the_following_link/1

https://www.researchgate.net/post/What_do_you_think_about_scientific_production_evaluation_indices_such_as_those_of_Hirsch_h_or_Google_Scholar_i10_or_others/1

https://www.researchgate.net/post/Research_Publications_Impact_factor_H-Index_I-Index_Is_these_words_becoming_root_cause_for_stress_nowadays_rather_than_Passionate/1

https://www.researchgate.net/post/Why_do_bibliometric_studies_get_so_much_attention_in_todays_world_of_academia/1

See also this interesting paper with criticism of the current misuse of citation analysis: How scientometry is killing science, https://www.geosociety.org/gsatoday/archive/24/12/pdf/i1052-5173-24-12-44.pdf

Wolfgang R. Dick Thank you for your answer. The problem is that universities in the Middle East encourage scientists to do so. I think the consideration of the h-index should be reconsidered. It is a form of cheating.

Dear Ismael Ibraheem , you may visit the following, related research discussion:

https://www.researchgate.net/post/Is_corruption_the_major_problem_of_scientific_integrity_in_public_and_academic_research_centers#view=6874ce63a4f50e723505cfb5

Ismael Ibraheem : "I think the consideration of the h-index should be reconsidered. It is a form of cheating."

You are right. There are many ways of citation manipulation, like citation cartels...

Please, do visit this discussions:

https://www.researchgate.net/post/How_important_are_citations_Are_they_overrated/43

https://www.researchgate.net/post/Authorss_citation_cartel-Anyone_seen_or_heard_about_it

Best regards