DOAJ will remove all journals that have ceased to publish unless they are continued by another title.
Although reversing a previous decision, we have taken this step after careful consideration in order to keep our metadata as relevant and as accurate as possible. Although there are clear advantages to retaining published articles from discontinued journals, there is also a downside. With the current number of discontinued journals in DOAJ standing at 208, over time this generates a lot of broken links—link rot increases over time—affecting the quality of our metadata. All of the library catalogues, discovery services, search engines and other downstream services which rely heavily on our metadata start inheriting that link rot.
[UPDATE: I should clarify that removing a journal and its content from DOAJ simply makes it unavailable to the public. DOAJ doesn’t delete anything. We are hoping to collaborate with an archiving partner to help preserve journal content. If those plans come to fruition there is no reason why some removed journals could not be reinstated. However, it is early days on those discussions. – Dom]