Just because folks buy something does not mean it works.
Marc Wiess products for planted aquariums come to mind. The claims made on some ofhtier products never did anything in several test I did.
Heating cables. Various snake oils and algicidal miracle "cures".
Aloe, garlic, peat extract and what not.........
The other side is that it also does not imply it does not work. But I've seen them and many folks here in CA have used them. I do not think it does anything more than the peat moss personally.
A few wholesalers here added to some tanks etc,no differences on their fish health etc. Other folks claim certain things, but not one to date has even set up a control and it's suspect unless in the context of a planted tank and setting a control with the various plant compounds plus rotting leaves is a quagmire to say the least.
One does not need a degree and can write however they deem fit and still be quite able understand such simple marketplace garbage and bandwagon mentality when they see it.
It's still a free country.
If you do not like how someone writes, do not respond to them.
No one is forcing you to respond.
One item to think about, are your fish really suffering and needing this?
Or would more significant and basic approaches to aqaurium husbandtry resolve the issue? It's only when you have ruled out other issues that you can fairly judge the effects of indian almond leaves.
I think if folks approached such products with this view in mind, they'd save more $ and have better success in the hobby. Asking the right question solves a lot more and gets away from so many practically unsolvable assumptions and extreanous issues.
Regards,
Tom Barr