In the Pepperoni Playboy doc at 13:15, you can see a DD-6 on the shelf behind Mac with all of the knobs removed.

Kevin Shields of My Bloody Valentine is confirmed to have used the Boss DD-6 Digital Delay pedal, as detailed in the Guitar Player Gear Guide. Although the specific purpose of using both the DD-6 and DD-7 isn't clear, the settings from these pedals are noted to be highly accurate in replicating his sound.

45:45 Minutes in the video Tom speaks about this pedal, "I could play the same riffs i used to play but they pan around trans-like, its atmospheric."

"The DD-6 is set for the cascading repeats and the hold. So if he keeps his foot on it it will just build and build and build. So he'll flip between the DD-6 and Freeze and sometimes go one foot on each, and be sort of tap dancing between the two," says Josh Klinghoffer's guitar tech.

Daron Malakian uses a Boss DD-6 on his live pedalboard along with a MXR Phase 90 and a Strymon DIG. Photo from the Ernie Ball: String Theory video from Fall 2018.

"One I really fell in love with and use all the time is the white one: the [DD-6] digital delay. When I worked with Glen Ballard on “Taste of India” [from Aerosmith’s Nine Lives CD], that was the pedal I wrote with, and the one I used for the backward effect. For me, writing has a lot to do with picking up a guitar and getting a sound. So sometimes it’s an amp, a tuning, or, in this case, a pedal that stimulates and inspires me to think in a different musical sense. Sometimes I’ll just fall into an unusual sound, and that’ll be my inspiration to write a song. Pedals play a big part in that creative process for me, and BOSS has such a great pile of pedals."

A Boss DD-6 can be seen on Brent's pedalboard at 3:02 in this video.

A DD-6 can be seen on Rabea's pedalboard at 1 minute and 38 seconds into the video.

According to this picture of the cures 2016 tour program posted on talkbass, Simon Gallup is using a Boss DD-6

Walsh mentions many pedals in this interview for Boss, including the Boss DD-6:

"What BOSS pedals get the most mileage onstage?"

"The delay [DD-3] is a favorite, the overdrive [OS-2], and more and more the pitch shifter [PS-5]. I prefer the DD-3 onstage, but for recording I use the DD-6."

In view on Simons pedal board is a DD6 alongside a DD7.

In an interview with Russell Lissack, when asked "And what gear do you use in order to conjure up the Bloc Party sound?", Lissack mentions the Boss DD-6 and responds:

"My guitars are all Fender Telecasters, and Kele and I use Fender Deluxe amps both in the studio and on stage. Pedal-wise, it’s pretty much a Boss-fest. I’ve got a TR-2 Tremolo, DS-1 Distortion, a new PW-10 Wah, the DD-5 and DD-6 Delays and the PS-5 Supershifter. For a long time, all we had was a distortion, a delay and an old wah pedal and we really got the most out of them. The DD-5 was always my best friend because there were so many different types of delay, but it was always really flexible. I really like to push my effects to see what sounds I can achieve when I get new stuff, but it’s been ages since I’ve had time to really experiment with things." (original interview here).

At 9:46 minute mark of the Premier Guitar's rig rundown, Lissack showed his DD-6 pedals. One of the pedals is being used for loops and one is being used like the regular delay pedal.