Support gives me this sort of answers:
Your server is not down. Any slowdown you experience occasionally, it simply a variation in server load, network conditions and variations in number of visitors.
To which I reply:
Sure, is not down now, it was when I posted about it :)
"Any slowdown you experience occasionally, it simply a variation in server load, network conditions and variations in number of visitors."
I disagree about that, since I monitor traffic via Google Analytics and forum stats. The traffic is extremely low for what I am seeing, and this is highly irregular behaviour.