55. See Giles, supra note 57 (citing research by Ed Chi that the rate of reversion for occasional editors has increased substantially since 2003). Increasing xenophobia, or other efforts to discourage newcomers, may be common in UGC communities. Cf. Posting of Michael Forster to Net-Happenings, http://oii.org/lists/lifecycle.html (March 31, 1995, 07:57 EST).