Wonderfool blockings

SQL

select
    replace(log_title, '_', ' ') as 'Wonderfool name',
    user_editcount as 'Wonderfool editcount',
    if(
      	user_registration is NULL or user_registration = '',
      	'',
      	date_format(user_registration, '%Y-%m-%d %H:%i:%s')
    ) as 'Wonderfool registration date',
	actor_name as blocker,
    comment_text as 'block message',
    date_format(log_timestamp, '%Y-%m-%d %H:%i:%s') as time
from comment
join logging
	on log_comment_id = comment_id
left join actor
	on actor_id = log_actor
left join user
	on user_name = replace(log_title, '_', ' ')
where log_type = 'block'
	and log_action = 'block'
    # changing
    # comment_text like '%wonderfool%' or comment_text like '%Wonderfool%' or comment_text rlike '\\b[Ww][Ff]\\b'
	# to
    # (lower(comment_text) like '%wonderfool%') or (comment_text rlike '\\b[Ww][Ff]\\b')
    # yields fewer results! why?
    and (comment_text like '%wonderfool%' or comment_text like '%Wonderfool%' or comment_text like '%Wonderfolly%' or comment_text rlike '\\b[Ww][Ff]\\b');
SQL

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