I do not think I am serious as I do not ride competitively. It is all subjective but if posting on cycling forums, losing your TT 10 cherry and then doing a couple more, breaking the 75 mile barrier and wanting to break 100 miles, completing a sportive but still wondering what a 600km Audax would be like, going clipless, coming in and telling your wife that it was only a short 30 odd miles today, contemplating buying the PS3 TDF Game, wanting to bling up your handlebar stem and bar ends, pondering if I want a full carbon road bike for summer, what would I use as a winter bike do I also need a tourer and a Mountain bike? is a Sram Red groupset really that expensive in the great scheme of things, wanting to watch and beginning to understand the tactics of the TDF, Giro etc, wanting a jelly belly cycling top, knowing what the colour jerseys represent in the TDF, being a member of both the CTC and a racing club, knowing how to go through and off safely in a group (theoretical and practical) and buying your first set of bib tights (longs) and overshoes for the winter and not worrying too much about how you look in them when in public makes me appear serious to others then perhaps I am but I still do not class myself as serious