Ultimately, I've no idea who's right here, but I have not read of any demonstrable evidence of a link between these two incidents. Marble seems to saying: "We had this problem at the MBCF, and then we weren't selected for the GBBF - there must be a connection." Well, not necessarily.
I know there are people in CAMRA with sexist attitudes, just as there are in most walks of life; for example, a long time ago I used to know a union rep who thought it was okay for him to crack sexist and racist jokes, not a view most of us shared. Nowadays most people who do hold such crass attitudes usually know when to keep them to themselves, but occasionally some idiots don't, as seems to have happened at the MBCF. From the very few incidents in a CAMRA setting that I've been aware of, I know that the campaign generally takes them seriously.
As I see it, there are three possible scenarios here:
- The brewery is mistaken: there is no link.
- They are correct: they were blacklisted.
- Publicly slagging off CAMRA is good publicity.
Bearing in mind that no brewery has an automatic right to be at the GBBF, and if one puts the suggestion of blacklisting aside for a moment, there are two possible explanations:
- There are lots of good beers that have to be left out simply because the GBBF cannot accommodate them all; Marble was just unlucky.
- Marble's beers simply weren't as good as the competition on this occasion.