If you publish CS academic papers, the ACM is very relevant. (You may argue how relevant CS academic papers are, to which I would raise an eyebrow and say touche.)

This.

And if you write "interesting" enough software you need to ping research papers for ideas and approaches.

The people who build glorified forms over data applications are always very quick to slam the ACM as being valueless, when it just lacks value for them. /rant

Too late IMO. Just disbanded my universities ACM student chapter.

I've been been involved with my university's ACM chapter for over three years now (and we've had a positive impact on the community), so I'm interested in your university's decision.

Was irrelevancy the only factor that caused your university to disband the chapter? Did another organization take its place?

Who disabled it? You, or the ACM?

Our members, officers, and faculty advisers voted to disband it.