Thanks for both replies which are interesting and helpful.
I know patients are divided over a merger, and I know many share your concerns and are against it because of them.
My own view is that it would be better, certainly in the medium term, but it's not a deal-breaker for me. If patients generally don't want it then fair enough.
I keep repeating it (and this is for general consideration and not directed at DxRW) but the only solution to this is to try to replace the trustees or at least elect enough trustees to form a majority. And for me that would be a deal-breaker of any proposed merger down the track. Trustees are needed at both organizations who have experience of the illness and who are trusted by patients (both, not either/or).
The obvious problem is that most patients are just not well enough and/or have not been well enough to get the necessary training and experience to run a charity. It seems to me that both charities should address this problem by either having a PAG with explicit powers of veto over eg a new CEO/medical adviser or by having trustees split, with patients in the majority and others doing the work, or something similar.
As for the MEA, perhaps it is time to write to Neil, Ewan and Charles and say that, first, they need to plan a succession anyway and, second, they are at serious risk of destroying their legacy and the credibility, trust and respect they, in particular Charles, have built up over the last 20 years.