color purple –
“The Kashrus industry is purely political and in a very sad state of affairs. I Can Only Try got it right on both points.”
– Thank you for your kind words, but that was not the point I was trying to communicate.
There are many, many differences in which hechsherim people rely upon. Some will rely on hechsher “A” for milchig (dairy) and pareve, but not for fleishig (meat). Some people will only eat fleishig if it had a chasidishe schechita.
The reasons for not using a hechsher are usually a combination of the following two:
a) the hechsher is not trustworthy (a relative who worked in hashgocho told me of one so-called “Rav Hamachshir” who he wouldn’t trust to say the earth was round).
b) the Rav Hamachshir (supervising/certifying Rabbi) and/or kashrus organization is absolutely trustworthy, but relies on kulos (leniencies) that you may prefer to be machmir (more stringent) on.
There are many people who will not use the hechsher of a person who they feel is a yirei shomayim (G-d-fearing person) because of reason b).
I am concerned that mentioning specific Rabonim or organizations as problematic may be counter-productive and lead to back-and-forth accusations and recriminations. At most, maybe say that “I feel organization B is unreliable based on …”
It is imperative not to rely on a hashgocho you don’t know without checking it out.