"has been often discussed" is a correct and usable expression in written English.
You can use it when the topic of discussion has been repeated multiple times over a period of time. For example, "The issue of climate change has been often discussed in international forums."
It is a culture that has been often discussed in this case.
Even though peritectic coupled growth (PCG) has been often discussed in the literature, it remains poorly understood in comparison to eutectic coupled growth (ECG).
As is well known, the concept of the state of exception has been often discussed in relation to Nazism, totalitarianism, and the concentration/extermination camps.
This is a topic that has been often discussed with false prejudice against fashion when nobody was left to blame.
The relationship between matching and maximizing behaviors has been often discussed in the restricted case where every choice is independent of the past choices.
The blues roots in Led Zeppelin's music have been much discussed; the story is often told of how the band developed out of the ashes of the Yardbirds, a band that in many ways carried the torch for electric blues on the London scene in the mid 1960s after the Rolling Stones became an international sensation.
The changes in media and journalism that the internet has brought about are often discussed in terms of new business models and technologies.
Specific treatment of patients who have attempted suicide is often discussed on the basis of previous suicide attempts 29 and an estimate of suicidal intent.
Matt Dawson, the former England scrum-half, has confirmed that Gregan was often discussed in England team meetings and that he was always infuriated by the way Gregan was able to stay on his feet.
The importance of gene-by-environment interaction (G × E) in psychiatry has intuitive appeal and is often discussed.
In informal conversations with biologists prior to this study, we have noticed that difficulty is often discussed.
