I told the user I couldn't see any issue with his posts but also stated I'd post it on here for a further opinion.
Those posts in the screenshot seem like generic talking points and one was in a 200-page thread, another in a 10+ page thread, both seem to be just addressing the thread title and not engaging in the discussion. Could be considered low value posts depending on where exactly in the thread they were etc. Edit: the battery concern was definitely expressed in that thread about a dozen times so if FM posted towards the end of the thread then it indicates they didn't read it or didn't care.
Mining board (assuming we're talking about the Bitcoin one) is a different story. Moderation is very strict there. Any mention of GPU or altcoins and you're out.