Hi Prem,
This follow extract is from the home page of The Dharma Overground.
"Welcome to the Dharma Overground
The Dharma Overground is a resource for the support of hardcore meditation practice. It is a place where everything related to the support of practice may flourish, including where to go on retreats, what techniques may lead to what, an in depth look at the maps of possible states and stages, discussions about how to determine what experience was what, and in general anything that has to do with actually practicing rather than what typically occurs in standard meditation circles. Here you will find a robust and variable community of people with a wide range of experience levels, perspectives and interests, though all loosely bound by the same basic principles of empowering, helpful, engaged dharma and exploration of the possibilities of the mind.
In general our basic principles and attitudes favor:
pragmatism over dogmatism: what works is key, with works generally meaning the stages of insight, the stages of enlightenment, jhanas, freedom from suffering in what ways are possible, etc.
diligent practice over blind faith: this place is about doing it and understanding for yourself rather than believing someone else and not testing those beliefs out
openness regarding what the techniques may lead to and how these contrast or align with the traditional models
person responsibility: you take responsibility for the choices you make and what you say and claim
a lack of taboos surrounding talking about attainmentsthe assumption that the various aspects of meditative development can be mastered in this life
the spirit of mutual, supportive adventurers on the path rather than rigid student-teacher relationships
and the notion that the collective wisdom of a group of strong practitioners at various stages and from various traditions and backgrounds is often better than following one guru-type.
There are lots of ways up the mountain, and many interesting skills and insights to develop using many traditions and paths. Make yourself at home. Discover the possibilities of how straightforward, down-to-Earth, and practical the Dharma can be. May all find something here that is of value and contribute to the wisdom represented and conveyed here."
END OF EXTRACT
Goenka yogi, right?
The whole idea that one can't talk about attainments and the insight stages is a very traditional way of seeing it. I understand U Ba Khin passed that way of thinking on to Goenkaji. I would say it orginates from the rules for monks not talking about their attainments and insights. If you like that traditional way of seeing things , stick with it. Myself? I didn't see much benefit in it while immersed in the Goenka tradition. I was lost in the dukkha nanas for a long time. Not much clarity and help was given concerning the nitty gritty details of awakening there.
Then I came across Daniel Ingram's book, this place, KFD and all these yogis who are openly talking about enlightenment/awakening in a very down to earth way. The dangers you expressed are valid. But the benefits far out way the dangers. More yogis have had faster and more progress because of it. If you do not like people talking about it, then you don't have to read the threads here nor elsewhere where it is done. It is your choice. But what you cautioned yogis about here is not the rule. There is no rule about that except for monks and nuns. We are not monks nor nuns. Yogis talked about getting this path and that path all the time in the Pali canon. So why not now? And in my experience as well as many, many other yogis' experience, having been exposed to the insight maps, and having had others tell me awakening is possible, has allowed for me to come out of complacency and disbelief and actually go and do it myself.
If the mind is rigid, then note it's rigidness, disembed from any of that craving and aversion that arise because you or others are talking about attainments and insights. Dis-identify with all that phenomena you talk of (unwholesome mental states) as well as the pleasant phenomena, and regardless of whether someone has talked about attainments, or whether you have talked about attainments, you will awaken. The mind does not go in the opposite direction, but the correct one.
Your non-negotiable mindset (one cannot talk about attainments and insight knowledges) was one I had myself for years. Then I came out of it and began to progress on the path. A flexible mind, I decided to have. And other people decide for themselves to be envious. Although they can note that "envy" and co-opt it as an ally on the way to awakening, if they are so inclined. Notice, Note and thus dis-identify and objectify it all and none of it is a problem. Absoltuely no phenomena, mental or physical is to be avoided, if awakening (4 path model) is your goal...including the envy and rigidness you say are a danger.
Be happy!

Metta,
Nick