Hi again wannaplay,
I can't remember exactly what scale length is "standard full size", but the trend has been to go to "short scale" guitars at least here in the States. It has to do mostly with the string tension factor. Reducing the length of the string allows you to not have to put as much pull on the string to get it to a 440 A reference note (for example). In acoustic guitars that is a big advantage, to allow the Luthier lighter bracing in the body of the instrument and the additional volume and resonance that results. From a "playability" viewpoint... easier fretting and bending. You might find that manufacturers refer to their scale as " 3/4, or 5/8" or somesuch but there are variations from make and model. I don't think that there is any set in stone rule about what length a guitar has to be, although one would think that it should be an even multiplier of the desired wave length of a frequency that relates to a particular note. My guess would be the A note, string 5 open at 440Hz. But considering that all fret locations are calculated from the bridge using the total scale length as the constant, you could make a guitar any length you wanted within the limits of practical tuning with common gauge strings.
As to the buzzing, it is most likely not fretting close enough to the wire or not being able to get the string fully depressed. The other variable is excessive bridge height. Assuming that the guitar is set up properly, and you said that it doesn't happen when others play it. It's probably you and something you are doing. It could be that your finger strength is not up there yet and especially if you are using barre chording, it takes awhile. You do practice a lot and that will get you physically conditioned fairly rapidly in that area, but don't over do it in one sitting. Break your playing time into many short periods, and don't, like sit and try to go four hours straight. Take breaks and stretch your hands and wrists or your tendons will let you know about having overdone. They heal real slow and come back to haunt you again and again!
Take Care;
Doug
Was that like too much information? PS: Did a little research and the Baby Taylor is considered 3/4 scale at 22 3/4". Martin, Alvarez, and Yamaha also build in that 22 to 23 inch scale on some models, mostly "travel" sizes.
"what is this quintessence of dust?" - Shakespeare