Hey,
thanks for the article, I've definitely learned something from it and researched the subject some more on my own. There is definitely some truth in it, and I agree that the nuts should be eaten in moderation (don't eat like 500g of them a day!).
However, this all depends on what you eat and how much you exercise.
For example, if you have a very unhealthy nutrition plan, you won't have much benefits from avoiding nuts.
If you are on a healthy nutrition plan, eating a handful of nuts a day won't make much of a difference, at least you probably won't notice it.
You need to focus on the forest, not on the trees. Avoiding nuts might make you 1% healthier. However, the phytic acid as far as I know only decreases the absorption of some minerals (within the nut). The nuts can still benefit you greatly - they are a source of healthy fats (especially macadamia nuts which are considered the healthiest of all), and for example the brasilian nuts are one of the best natural sources of selenium, which improves sleep quality.
If you are on a low carb (wheat-less) diet, you should watch out that you still consume enough healthy fats and enough calories to function properly. So if you got rid of nuts, you would need to replace them with olive oil, fish, etc., which is ok, but certainly not as practical.
Since we're talking about poker and we know that nuts help us preserve a steady flow of energy and concentration during the session, I don't really see myself eating olive oil during the session as a replacement. The nuts are way more practical and portable.
As for the diseases, for example, since I've switched to a healthy nutrition plan (it's been about 2 years), I haven't caught a cold, fever or been sick yet. I used to be sick pretty much every winter before that. The amount of injuries I've suffered has also decreased greatly.
In general, if you are on a healthy nutrition plan, you shouldn't worry about the sufficient consumption of minerals - you'll get them.
If you exercise a lot and remove the nuts from your diet and don't replace them with anything, you will be consuming way too little calories which will destroy your energy levels.
Soaking nuts in salty water overnight and then drying them (on the sun/using a dried/on a really low heat in the oven!) should help with the removal of phytic acids if you want to really optimize your nutrition, however it's pretty strange that the author of the article actually suggests roasting the nuts to do this. The known problem with roasting the nuts is that this gets rid of most of the healthy nutrients in the nuts, so they pretty much become empty calories.
To sum up, if you keep eating nuts in moderation (during the sessions, school, day job...) and follow a healthy nutrition plan, you shouldn't have any health problems because of them. If you want to perfect your nutrition plan, soaking + drying them would be a good idea. If you want to remove them from a diet, you should find a good replacement for them.
-SF