I wasn't talking about anyone else, I was talking about the bowing part specifically and I noted how disrespectful he had been while watching it. I would have felt the same had it been Jo Swinson that didn't bow. He is the leader of one of our main political parties and for him to be so disrespectful is disgraceful.
Funnily enough I've just gone to the trouble of watching that part of the ceremony again - on BBC iPlayer ironically, and whilst the depth of Jeremy Corbyn's bow isn't as great as some others, you cannot possibly claim that he didn't bow at all. In fact, it didn't appear to me that Jo Swinson's bowed head any further than his did. There was a variety of bowing across the main political party reperesentatives there.
To illustrate the point of biased reporting however, JC's 'non bow' has been seized upon by some parts of the press , such as the headline in the Express which stated 'Outrage as Corbyn accused of failing to bow in respect to war dead...'. By contrast whilst the Express also headlined 'Boris Johnson left red face at two awkward gaffes at Remembrance Sunday ceremony' there was no suggestion of disrespect in either that headline, nor in the reporting which followed. Furthermore they showed BJ respect by using his full name, whereas JC was disparagingly referred to as 'Corbyn'.
Words matter. Reporting matters. There is a very distinct difference in the way the two reports I've mentioned above were conveyed to the public. One is intended to criticise (JC), the other is far more forgiving (BJ). In absolute fairness, I very much doubt that either JC or BJ intended to cause any offence by their actions or appearance on Sunday. After all, there is no rule book that I'm aware of stating how far you should incline your head on such an occasion. There's also no rule book about appearing smart and tidy although convention in the UK dictates that that is what's usually expected at important and solemn events and therefore perhaps a little more care from BJ might have been wise. Similarly, his laying the wreath upside down would surely not have been intentionally disrespectful, though again, a little more care would have been appropriate.
Yet in spite of the above, it is Jeremy Corbyn who has been castigated - both in the press and on this thread - for being 'so disrespectful', which is utterly disingenuous. You @KatherineJaneway might as well say that Boris Johnson was also 'so disrespectful' for laying his wreath upside down, or for stepping out to do so slightly sooner than he should have done (he must surely have been briefed about timings and cues). You could argue that it was 'so disrespectful' for BJ not to have paid enough attention to that brief, or not to have practised turning the wreath around so it was laid correctly. In the interests of being ultra fair - as opposed to assuming that BJ is pompous enough a character to have believed he 'knew it all' - I am willing to accept he made a couple of genuine mistakes without intending to offend. But obviously 
Jeremy Corbyn isn't capable of similar human error in not getting his bow quite 'right' (inverted commas because there is no accepted standard) and he must have had a far more sinister intent!!
The point remains that the respective appearances of both BJ and JC have been scrutinised in the media very differently and unfairly. And there remains a significant question mark over apparent BBC attempts to show BJ in the best possible light.