Because the op of that thread is no longer active and doesn't moderate off topic postings and as such it's now mostly full of idiots discussing alt coins day after day. Sick of seeing dozens of reports from that thread every day. Plenty of other pointless threads in Speculation to talk shit in. If you want to talk about alt coins then do that in the alt coin section.
There would have been more than enough volunteers to help you properly moderate that thread if you had inquired, but I get the impression from my own dealings that you guys aren't much bothered in fostering good relations with your members.