Issues encountered with assigning .0 and .255 as usable addresses?

I used about a /15s worth of /23s for DHCP at a previous employer for 5 years
(2005 - 2010) and they're still using them today years later. Never got one
complaint AFAIK. I even got one of the .0 or .255 addresses for a while and
never had trouble. This was discussed in detail a while back. Look in the