#Yogas-Spectrum.. Yoga and We.
Regarding Yoga-traditions we see there are ardent fans, practitioners and valuers on one side, and on otherside die hard opposers and devaluers of all yoga systems. All Yoga is not one there is a Yogic Spectrum from Positive_yogas to Negative_yogas. Being aware is being wiser.
I have experienced and explored the following yoga schools,
1. Astanga/Hatha Yoga at RIMSE(Mysore) & VK Ashram Bangalore.
2. Sudarshan Yoga AOL & Isha Yoga,
3. Hasya or Laughter Yoga @ Blr,
4. Kriya Yoga at YSS,
5. SKY & Siddha yoga by Vedathri,
6. Bhakthi/Mantra Yoga @ Iskcons(Multiple ISKCON Orgs),
7. Family Kutumbha Yoga @ judicial layout, Blr.
8. Rajyoga by BK. Bhrama Kumaris.
There may be many more 99 varieties of Yoga to be explored..
I have also crically observed Yoga Schools like tantrik Yoga, Sun Yoga, PAM Sahaj Yoga, Bodhidharman Zazen yoga @, power yoga, zen yoga, pranic yoga, hot sauna yoga, beer yoga, A2z Yoga etc..
3 Sides of Yogas and other things.
1. The Positive_Yogas i.e Scientific and rational evidence based yogic systems, holistic practices with use of rationalism & dedication. To share good wisdom and empower people’s health and well being of society. Eg of Satvic-Yoga towards Satya Yuga.
2. The Neutral_Yogas Unscientific and Arty. Just simple practice with zero intellectual or research engagement. Just Fad or fashion of Yoga by copycatism. Its just superficial engagement for health & wealth. Eg. Shunya-Yoga neither Balance of Satvic and asatvic-Yoga.
3. The Negative_yogas Anti-Scientific and Cultic. Its Superstitious and false fiction based yogic claims and misinformation. Here Yoga is used as a tool to gain power and entrap people by stealth. Eg. of RAJASIC-yoga or Tamasic-Yoga.
More information..below

Yogas can help or hurt you, it depends in the Traditions (Schools & lineage) and the Traders (Scholars and Teachers).
What are more truer-yogas and which are falser_yogas, how to know the differences of which are which? And who is who?
When we overgeneralize Science or even yoga we miss out on the depth and details, I refer things as Sciences and Yogic-traditions, and not limiting Science and Yoga. To note the plurality and diversity these words imply.
“Restrictions of Yogas” Depends on which “Yogas” are being referred.. like we can mostly seen.. There is nothing as a monolith(all or none), its more a spectrum or gradations (Few and more).
Here are variety of yogic traditions, many are open and inclusive , few may be closed and exclusive.
Eg.. Astanga-yoga(Asanas) is open and inclusive as written in text, Kashmiri_yoga or tantrik-yoga maybe closed and exclusive as is passed on by direct guru-shishya lineage. This info is more shared here:
https://yogainternational.com/article/view/how-casteism-manifests-in-yoga-spaces/
Eg of Sciences-based Yoga schools and Teachers: https://www.thehindu.com/news/cities/bangalore/svyasa-research-shows-yoga-based-lifestyle-helps-manage-diabetes/article29956718.ece
Eg of Antiscientific cult or Psuedo-Scince based yoga schools & Teachers;
Eg of Unscientific and Arty: There maybe neutral yoga schools too like the ones in our neighbourhoods, that focuses on simple plain physical practices, not in depth research or cultic hierarchies.
We are Empathic_Skeptics, not a blind_believers (Naive to Unquestioningly_Trust Everyone & everything label as White_truthers) or blind skeptics (Unquestioningly_Doubt & Deny many things and many people label as Dark_liers).
We see, try and understand the spectrums of life in the gray zones. Going beyond the superficial into deeper realities.