private static bool IsAvailibleForDisplaying(IComment comment)
        {
            var rules = SiteSettings.Instance.CommentsRulesSection.ScheduleRules.OfType<ScheduleRule>();

            if (!rules.Where(rule => rule.RuleType == "Pre").Any(
                    rule => (comment.Created > rule.StartTime && comment.Created < rule.EndTime) && (rule.WeekDays.Contains(DateTime.Now.DayOfWeek.ToString()))) &&
                rules.Where(rule => rule.RuleType == "Post").Any(
                    rule => (comment.Created > rule.StartTime && comment.Created < rule.EndTime) && (rule.WeekDays.Contains(DateTime.Now.DayOfWeek.ToString()))))
            {
                if (DateTime.Now < comment.Created.AddMinutes(SiteSettings.Instance.CommentsRulesSection.TimeToLive.Minutes))
                    return true;
            }

            return false;
        }