Why are (some) people so against customs?

[Thundering TNT]

I see nothing wrong with customs. They take nothing away from people who want to use a default moveset, but they let anyone who wants a different moveset have one. I can't seem to understamd why anyone woukd appose customs becoming the default moveset.

 

[Locuan]

There are quite a number of threads and posts that dwell on this topic. In fact, on this sub-forum you can find a lengthy discussion regarding customs moves and their legality, particularly at EVO, on the following thread.