- Client-side security: In some cases, a user's computer which houses the code is exploited through illegal entry or theft.
- Implicit Casting: In Array.sort() and some unexpected areas, implicit casting has made using = = unreliable for comparisons.
Rather they look at the pros and argue that
These are reasonable points but does not remove the fact that these glitches exist which can be bad to some users.
In spite of all these glitches, there is good news.