I think you may be over dramatising this activity...
I have on many occasions popped a 'proper' bid in early on something I'm seriously interested in.
If a Kenner 12 back for example starts at £1 and has £1 increments, we all know it's worth more than a couple of hundred quid and it certainly isn't going to sell for £37, so I can't be bothered sitting and waiting for 200 x £1 increments to pass before we get to the real point of the auction, if the bidding starts at £1, then goes to £2, 3, 4 etc. I'll happily throw in a bid of £50 or £100 to get it moving 'properly'. In no way am I trying to be flash or looking at other guys small dicks while admiring my own little chopper. To my mind it just makes sense to not 'dick about' for want of a better phrase, its going to go as high or higher than my bid, what is the point in waiting.
Almost every FB auctions I've seen is based on minimum increments rather than fixed ones, so its not unusual (as per eBay) to see an auction jump in quite large blocks every now and again. I really don't see the issue...