D-Clone going crazy on Asian server now

Many of you may already have experienced this, but to me it is new.

As I started noticing, Asian server had 6 D-clone spawned in a quick 30min or so time frame. I was reporting D-clone status to the site, but many times could hardly keep up with the D-clone progess.

D-clone between D-clone is only 5mins as I recorded. When I kill one, identify anni, carry and place it in the stash, the progess would already be on the 2nd or 3rd progress stage for the next D-clone.

In one TZ timeframe, 1 hour, I collected 8 anni. and as of this writing, it is not slowing down.

My questions are:

what are the mechanics behind this? is it just someone mass selling SOJ, or some kind of unkown event to me?
more importantly, does this happen often? could I know such busy schedule in advance?

Many thanks ❤

EDIT: softcore, non-ladder, asian server

Botters doing what botters do.

Yeah, even on daily basis dclone walks Asia few times a day

I think it is over finally.

I might missed a few, but in the end, I collected 15 anni, none of which could be considered as A or even A+, talk about bad luck.

Maybe it is not over ... again 4/6

Yup, it seems over. I was late to the party, gathered ~8-9 but nothing good as well.
42/50 max I think

Does anyone know where this mass of SOJs is coming from? In Asia NL there are constantly multiple walks a day.