He might just have strong opinions based on his experience. Certainly you could level most of your post against the author of Varnish, but then you read his ra

He might just have strong opinions based on his experience. Certainly you could level most of your post against the author of Varnish, but then you read his rants and feel that they're valid, and you look at his code and it's some of the best I've seen, and you look at his track record and who is using Varnish and are won over. Rants aren't bad things, I want highly opinionated leaders of projects to be good steers for them. You just need to decide whether you agree with the rant (and the direction of the project you could project from those views) and make your own decision on whether to use the software. As rants are usually subjective, there's going to be a load of people out there who will want to use the software on those terms.