As a newb, you are probably going to die even with all skills at 100%. Also, you stand a good chance of dying whilst you "spam in the mists" or whatever you do to perfect your skills.

So, let's say that you do perfect all your skills and don't die in the process. This takes, say, 5 hours for all the skills you want to perfect.

That's five hours you could have been using to get to know the layout of the entire past perfectly (subject to a few exceptions), knowing that no one in your pk range is going to look for you in areas like the battlefield and Aridhol, because you are lvl 18, say. All you need is a few teleport potions and a recall potion and you are unlikely to get pk'd whilst doing it.

That five hours will probably save your ass more than the 100% skills. Not only that, but when you delete your character, you will retain the benefit from that 5 hours. However, if you just spammed skills for 5 hours the benefit is lost.

The only way spamming could really be worth it is if your survivability increases so much that you have extra time to do stuff like explore as a result. However, my impression is that the explorers are not the skill spammers.