I basically joined the ACS because it's there and I figured I ought to. They gave me a post-nominal: CT. If I want the next grade up -- CP -- I will need to take thousands of dollars of synergising-outside-the-box courses. Basically the ACS isn't really for software engineers. It's for middle management. I won't be renewing. (I might renew my ACM/IEEE memberships).
Totally. I've only once heard the ACS mentioned outside of the immigration context, and that was a senior manager in a bank asking why we (his best tech staff) weren't members. I'm not sure if (Insert nationality here) Computer Societies are as irrelevant in other countries, but in Australia I'm pretty sure it serves no useful role other than in immigration. So, if that's the case, they have no basis for qualificatio…
But that too has turned out to be bit of a farce. The real value is in their digital libraries and it is amazing how carefully they segment it to make it hard to get access to anything useful without paying frankly stupid amounts of money.