What does ### do?

[OBloodyHell]

I may have missed it, but I can't find anything that tells me in any way that makes sense what ### does in a filter.

I used point and click to create a filter, but it changes with every popup of the advert, so it's useful only briefly.

Here is what AB creates:
(website).com###\32 4256
If there were just two # there, then I'd understand what was going on. But I found nothing in the filter docs that explained this... If it were just two then what followed would be a div reference, but what the heck is going on that there are three #?

Generally looking to produce a generic version of the above block.

Any help would be appreciated.
TIA.

[Gingerbread Man]

## denotes an element hiding filter.
# denotes an element id attribute.
en/filters#elemhide_basic

Here is what AB creates:
(website).com###\32 4256

Please post the link to the page where that happens. The resulting filter is faulty: spaces aren't allowed in the id attribute value.