While its true that Wolverine/Logan has a regenerative factor like X-23 and Sabertooth, the presence of his adamantium skeleton prevents him from being considered a user for health ailment immunity,
Since the adamantium is continually poisoning him day and night, it forces his healing factor to constantly fight off the effects of it (otherwise he would die from the toxic buildup).
Because of that, he cannot be considered as user. If he was truly a user then the adamantium wouldn't affect him at all.
Sorry, but he doesn't belong.
Also if you bother to check out the explanation for the powers on the marvel wikia, you would have seen that neither the Heart Shaped Herb nor Kraven have Health Ailment Immunity (especially since Kraven has gotten sick before in the actual comics, so it doesn't count).
Please actually review the explanations on the marvel wiki before making up details that are not listed.