Plenty of guys with a smaller starting size that post, just less likely to be forthcoming about what size they are. This is to bad because we are all here to get bigger so your starting size is just that, your starting size. Also it’s the internet and nobody knows or cares who you are off line. Besides, giving someone a hard time about being on the small size is a sure way to have one of the mods crawl out of a guys monitor and stick his computer right up his ass. Figure for every guy posting about starting out at 7”s another guy is starting at under 5”s and not saying anything. Every now and then a new guy will say, “fuck it!”, and post about his 4.5” starting size. When this happens the thread is flooded with responses by others that started out a bit on the small size and are grateful someone has broken the silence.
Depending on which study you want to go with 5.5”s is under average, average, or just over average. 5.2”s girth is well on the chubby side no matter which study you go by.