According to iplocation.net: the first and last IP are from an ISP in Canada, the other in Switzerland. Looks like a regular botnet.
I'm from Canada - you are Switzerland. Are we being framed?
Can you log into TalkImg? If so, you are not affected. Although at this time, it is not possible to upload new images.
Now, I believe that with the blocking levels I created in Cloudflare, some users may be more affected than others.