LACK OF THE HIGH IMPACT
In various disciplines such as science, medicine, and economics, researchers are rated by their ability to publish in journals with a high impact factor (ie a highly cited journal)
Source: Wangeningen University https://www.wur.nl/en/library/researchers/open-access/open-access-pros-and-cons.htm
ARTICLE PROCESSING CHARGES (APCs)
Source: Jain, Iyengar & Vaishya 2021, "Article processing charge may be a barrier to publishing", J Clin Orthop Trauma, 2021, March 14: 14-16 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7919939/
Source: Waters, B 2021, "What is an Open Access Journal? Types, costs, pros and cons"
https://sciwriting.blog/what-is-an-open-access-journal-types-costs-pros-and-cons/
LOW JOURNAL PROFILES
Free Diamond OA journals are not well known, and have low impact factors
Source: Waters, B, 2021 "What is an Open Access Journal? Types, costs, pros, and cons". https://sciwriting.blog/what-is-an-open-access-journal-types-costs-pros-cons/