No, I never ever feel insulted by the technical talking or challenging the information. we learn from discussion. but please check you wasted how many hours to investigate someone else posts and make angry comments like that just because maybe the topic or content is repetitive or information is not enough.
Generally, engineers never support each other and they have the habit to ruin each other work, [...]
Your approach is a bit strange, if I may say so. Instead of two posts complaining about Ian's reference to your old thread, you could simply have said "Yes, it's the same design challenge" or "No, this is about a different requirement".
And how do you know that Ian "wasted how many hours" to find that old post of yours? He might simply have remembered you. I can see how that could happen...

Finally, if you come here asking for help with your design, you have to be prepared for criticism. If there was nothing wrong with your design, why would you have asked for help in the first place? So I don't understand the second paragraph of your quoted post.