I am sorry, but honestly, some of your products just does not work on busy forums. I don't know why....maybe you cannot test it on busy forums, or it is based on working on your site here...
But really...I have bought almost all of your products, yet on most of them, it will just crash my forum.
vbslider....no go
vbshop....no go
vbactivity....no go
vboptimise...no go
ajax threads...no go
Yes....you have many answers...about cutting this down and that down....but still, it just will not work.
I am really not happy, and it probably does not matter, and that is fine, but really! Well....just ban me...
vBOptimise runs on sites several times larger than yours and improve their performance:
vB Optimise - Resource Statistics
Ajax Threads works fine as long as it is configured correctly and not simply applied to every single thread.
There have been no reports of vBSlider, vBShop or vBActivity having issues on large sites either. We run the majority of our products on a forum with around twice as many members as yours (though less concurrent visitors, assuming your stats are at the default 15 minutes timeout)
Final Fantasy Forums which helps to give us an idea of performance on larger boards.
I'm really not sure what more you want us to do - there is plenty of evidence from our many customers that the products function just fine on larger boards (again with the exception of AJAX Threads being made available on ALL threads, which we specifically advise against). You seem to be having issues with configuring the products to work with your server and are blaming us for this though?
Just putting information here for the benefit of readers:
You wanted to load 105 images into the slider, all 300+kb each, on your homepage - now you seem to be suggesting that vBSlider doesn't work because loading that many images to your homepage will seriously slow it down?
Regarding vBOptimise - we pointed out your xcache appeared to be having issues and storing some things it shouldn't be, perhaps indicating it was not functioning correctly. You blamed vBOptimise for this and claimed we should tell customers it doesn't work with xcache - even though for customers who can get xcache itself functioning correctly, it does.
With AJAX Threads - you were advised that enabling a short auto refresh on all threads would increase load, again you seem to interpret that as the product not working.
I'm not entirely sure what your issues with vBAA and vBShop are off of the top of my head so I can't comment on those sadly.
In all cases you are blaming the size of your site for your issues, when the issue is you want to do unreasonable things with the products - things your server is unable to handle. I don't feel the post is fair or justified, however you are of course entitled to your opinion.
I think you claiming your site is "too big" for vboptimise to work properly, when it runs and helps sites like mmo-champion.com which is several times larger than your site shows that you are very much mistaken in your claims. Just to reiterate - the issue is that you are attempting to do things your server cannot handle, not that our products are somehow unable to run on large sites.