I made a typo when creating a UITableViewCell with this code:

- (UITableViewCell *)tableView:(UITableView *)tableView
         cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"CellIdentifier";
    UITableViewCell *cell = [self.tableView
        dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil) {
        NSLog(@"Creating cell");
        cell = [[[UITableViewCell alloc] 
            initWithStyle:UITableViewStylePlain
            reuseIdentifier:CellIdentifier] autorelease];
    }
    cell.textLabel.text = @"Hello";
    return cell;
}

The typo is in using UITableViewStylePlain instead of UITableViewCellStyleDefault. The code worked fine, creating new cells. Why?