Looks like someone is having an attitude here))!
1. Fiber + erythritol was an indicative suggestion to consider. It is not possible to suggest an exact recipe on the product you never works on, various fibers with various sweeteners would produce totally different results. You don't need to be a pro to know this. That's why the suggestion was very directional and not specific. My company does not sell fibers or sweeteners of any kind if anything.
2. It does take a profession and devotion (incl.investment of various resources, starting with time) to create outstanding products. And working on each and every next recipe or technology = time+money. So charging when you are professional in something is a must as it is proportional to responsibility, unless you want to share or donate for personal or indirect commercial reasons. I do recommend to charge for work. Always. Because free consulting = NO responsibility for the final result. That's why even indicative advises are limited. My team is a professional food-tech crew with patents and a huge portfolio of innovative product concepts (24 product groups with over 300 products), we've developed multiple products that were selected as SIAL Paris innovations and are now sold in several countries at 3 continents. Sharing expertise is also a must, but it must make sense and be responsible under any angle. Thank you for reading till here))