[amfsn]

Does using warez slang automatically make software less secure and slower?

[Fnoord]

It reduces confidence because warez is associated with running cracked software of which you don't know exactly what was modified/added/etc.

[jameskegel]

My how far we’ve come in such a short few years.

[rootlocus]

It speaks to the priorities, attitude and / or the work ethics of the developers involved. I wouldn't trust people who care about using teenager slang and looking cool to write secure and efficient services that I could use in production with customer data. I may be wrong, but my confidence is still low.