Is it pointless for ppl working in CS and SME to have Linkedin since nobody will hire
 

Since their skillset is useless and non-transferable, having a linkeidn acc is useless?

CS especially if you are there >10 years honestly no point in linkedin. Recruiters will not bother with those in CS too long and other ministries will just go through the usual careers@gov and wait for people to apply.

linkedin is useful if you have useful skills. right now IT skills are in hot demand, i have been receiving linkedin inmails and cold calls almost weekly, offering up to 20% increment from current position. meeting up with 2 recruiters next week to find out more before agreeing to any interviews. recruiters are also desperate to "close sales" to earn commission.

yeah one day you will find yourself out of job because that APNN/pinoy beside u is taking 20% less pay than you but doing the same role. good luck