BA has consistently attacked most people criticising UKIP, allegedly because they're criticising them the wrong way (which I agree many people are) but, despite saying he has, he has consistently failed to really criticise them himself.
He has consistently suggested that he sees their rise as indicative of some positive political or social development, but has consistently failed to explain what he actually means by this.
And he has consistently celebrated every poll and electoral result which indicates them doing well, and praised the way they've conducted themselves as compared to the mainstream parties.
Here is perhaps the nearest he comes to explaining his position (off the Farage humiliated by LBC interview thread)
But obviously nothing about what he thinks it suggests about what is going on socially, or where this turmoil will lead. Just "vote UKIP for turmoil". Someone else later in that thread describes this as the position of a teenage nihilist. I think it's the position of a sad middle aged nihilist who is filled with hate and who recognises deep down that for all his reading and all his supposed erudition, he is an impotent irrelevance who actually has absolutely zero influence on anything.
It looks to me like he's given up on a pro-working class politics and he's left with, presumably, a vague hope that the three main neo-liberal anti-working class parties can be brought down in a state of turmoil as a result of people voting for a different neo-liberal anti-working class party. And he still claims that this is some sort of coherent political position which everyone else here is too stupid to see, the cunts.
So he may not be a supporter in the sense of going out canvassing for them, or even voting for them, but his support in the sense of wanting them to do well (if not the reasons for this support) has been apparent on various threads for weeks.