I was thinking about starting a file sharing site and use it as the domain. Would anything bad happen if I did this? What problems could I run into? I know Kim owns Mega.io, but I won’t claim to be a part of that.I wouldn't appraise it anything above 2 digit $ as the same name carries a very negative PR / fiasco with the .com and the whole SWAT raid on Kim Dotcom's house and what not.
Maybe email Kim if he would like to buy it. btw the .com was seized so no sane person other than Kim Dotcom himself would start anything on the .io (he already has Mega.nz though)