Many of our scripts have copyright notices at the top like this (category.py): # (C) Rob W.W. Hooft, 2004 and then: # (C) Pywikibot team, 2008-2013 even if most contributors (e.g. Rob W.W. Hooft) are regularly listed in CREDITS.
Is it to mark the main contributors? I haven't seen that notices being updated for months, even when some scripts get significantly improved or rewritten.