I'm not sure reading LessWrong will necessaryly disuade someone who is already a bit sceptical of the Rationalist EA community from believing that there is something culty going on. One of the things that really rubbed me the wrong way about that blog back in the day (I'll be up front and say that I haven't been keeping up with it for the past 10 years) was exactly how insular a lot of the writing was and how little it seriously engaged with existing literature and research in favor of reinventing the wheel and relying on their own private language which was not used by anyone else working in similar fields (as an example, Yudkovski is far from the first person to promote naive Bayesianism (basically the idea that if you get good enough at applying Bayes' rule, you will have solved the problem of induction), but if you only read his blog back then you could easily come to believe that he was doing groundbreaking stuff with respect to this topic when this was far from the case).