unclear danger ? several items of fuzzy reasoning as for example:
1.major ''hacker'' attacks on exchanges happened last 2 to 3 months
   that means:
 -vultures (hackers) are circling above altcoins market
 -vultures have fresh capital to crash the markets or pay for hacker software
2.last weeks there were quite strong pumps on many altcoins
 -astonishingly such major moves soon after these major exchanges hacked and fresh capital came for ''hackers''
3.there was a thread on bitcointalk this year : someone boasted he has killed some small altcoin blockchain and he promised he would be ''serial killer of altcoins''.
Did not follow that thread ( due lack of time ) - what has happened later in that thread?
4.protocol number ''zero'' showing on AC explorer
 -possiblility that someone hacked this wallet?
5.as protocol ''2.0.1'' was professionally explained by Maestro1 , nobody ever explained what is ''zero'' protocol
 - actually - after some discussion on this page, protocols '2.0.1' disapperared from explorer today. accident or something ?
same for ,zero, protocol - today is not shown
one actually could start guessing if there is a correlation of ''zero'' and ''2.0.1'' protocols shown and higher difficulty on our blockchain ?
and if there is such an correlation - does it mean anything?
during last rise of difficulty till 3.01 - on the explorer it always was shown 5 to 7 wallets with ''2.0.1'' protocol and roughly two wallets with ,,zero,, protocol
6.if a hacker would like to kill a small coin blockchain- he would possibly hit smaller coin where is not enough attention
-as for AC : nobody notices as difficulty unexplainably rises from usual 0.09 ( as today ) till 3.01 ??
7.there always is theoretical possibility that promoters of major altcoins or even bitcoin would like to kill some altcoins from time to time.
do not know if AC could be perceived as threat by anyone from bigger coins now.
Actually this was a business Mintpal was in all the time : it was proverbial at that time : when some altcoin started trading on Mintpal it was soon to be killed
Mintpal - as some serious altcoin traders claimed - was generating up to 90% of turnover with army of bots - all with intention to kill most of coins and pump some chosen coins.

taking all this together - see some possible troubles?