Staffa - 8:04 pm on Aug 19, 2011 (gmt 0)
Since the launch of the site, at the beginning of this month, Bbot has visited exactly 109 times, all with genuine IP numbers and proper UAs. One might consider that aggressive "visiting" but no crawling since no page has been read.
Indyank, at that rate of visiting Bbot knows exactly where the site is and anyone would be quite happy with this type of crawling (that is, if it were to read more than just robots.txt). Therefore, I see no need to open an account with them but thank you for the suggestion.
Tangor, the site is on shared hosting. I'm very happy with this host and I don't intend to move (Win server). How and where it is hosted should not be a factor to influence Bing, they don't pay the hosting bill.
Thank you all for your input, it's very much appreciated.
I'll leave it till the end of this month and if there is no change I'll add four more lines to robots.txt just for Bingbot, then it WILL have something to read and I can forget about it.