Right folks really begining to get confused!

I've trawled thru' the pages here & I still don't know if the 18% tip is included? So far on here & on the US threads I've seen an excerpt stating that a 18% tip will be automatically added to all DDE meals?

We have DDP on our next trip but have seen no mention of the "tip" being added either in the brochure or any WDW correspondence.
Now like other posters we normally reward good service with @ 20-25% but there is a difference between that being our choice & being advised/told to leave 18%!As we are already signed up to DDP,if the 18% turns out to be correct,we will use our allocation this trip but on future trips eat off-site as we have done on past trips-there are plenty of good eateries out there.
SD