Is it time to start calling out bad cyclists?

First day back on the 20 mile commute today after working closer to home for 5 weeks.
Where the fuck did all these cyclists come from? Among the usual anus puckering (mine) actions of other commuters, the most embarrassing cycling today was from me - honking it up Peckham Rye towards Nunhead only to get some seriously hollow legs just as I was (trying) to pass a chap on a road bike. He said something along the lines of "well, are you going to overtake or not?"
Shocking display.
Good to be back on the proper commute though, even if it's just for the Southbound Vauxhall Bridge sprint past all the flouro every evening.

I hear you. Been on holiday for two weeks with no exercise past some body boarding. Jelly leg nightmares.