The issue is that no details have been released yet and block 100000 is nearly there. First it was block 100000 the limit, and then they apparently changed that to May 23 without further explanation, which creates the uncertainty and confusion that we see in recent posts.
Since there is no unequivocal, official statement confirming that nothing is happening at block 100000, it's prudent to hold ZCL in wallet between block 100000 and May 23, if you don't absolutely need to move them.
It says right there you can buy or mine until, May 23rd, that means nothing happens at 100,000