Most online profiles are searchable. And it should be so, because when people search about you, they should be able to derive a clear consistent image of who you are. And it is imperative that every online representation of you should add credible value to your brand.
Being part of a community is as much a privilege as learning from it. The first thing another community member sees about you is your member profile, based on which she builds an opinion about you. Although others observe more about you when you are amidst them, the first impression to even agree to meet you is established by what you wish to be known as, how your profile portrays you and what you get noticed for.