i think you can replace delay with door for your purpose
anyway delay is common for all clients in mp...
As for kill, there are also issues with it, not related to personal preferences:
*it breaks scriptonrespawn (runs twice)
*it breaks spawn selection/exploration (most simple example: map with two spawns: you have to decompile map to discover 2nd spawn availability with new df
![Neutral :|](./images/smilies/icon_neutral.gif)
*it breaks cgg's feature to keep current weapon selection after death (ctf.2 is the case)