Well, I took the time to report this to TFL. Not sure if this is just a standard template letter, but hopefully could lead to some more consideration by the bus driver in question. A bit worrying that they suggest that they may not be able to identify the driver concerned.
Dear Mr Trickedem
Thank you for your email regarding the driver of the 277 bus on 8 February. I appreciate you taking the time to bring this issue to my attention.
I am very sorry to learn about your experience. I apologise for the shock and upset caused by the driver’s actions. The safety of our passengers, as well as that of other road users, is an issue we take extremely seriously. Our drivers receive comprehensive training to enable them to perform their duties to the highest standard. As you would expect, safety is a vital part of this training and drivers are expected to give cyclists ample room. I can only apologise that the driver did not do this on this occasion and put you in danger. Please be assured that this issue will be taken very seriously.
I have passed the details you have supplied to East London Bus and Coach Company, who operates this route on our behalf. They will try to identify the driver, and if successful they will interview the driver and take appropriate action. For confidentiality reasons we never release details of an interview and any subsequent action taken. However, please rest assured the operator will endeavour to ensure that a repeat of this does not occur in the future.
Once again, thank you for taking the time to contact me regarding this issue. If I can be of any further help in the future, please feel free to get in touch.
Yours sincerely,
...........