He deleted it because too many people were porting failed add-ons, and apparently porting means just changing the name.
Essentially this. So much has changed in Blockland since v8 (which most of those archive add-ons were made for) and v16 that they simply aren't going to work as well as they used to and people won't take the time to fix them properly.
1) Please tell us before you are removing it so we can copy stuffs that we could move to BL forum instead.
2) Something I tested with my add-on, and it worked like a charm.
1) There will be plenty of notice, we're talking a month atleast.
2) We've talked about this. I don't have a problem with your add-on but it's not the type of thing I'd like to include in RTB by default. If you re-submit it to RTB I will approve it however, given no issues have cropped up so far.