I asked chatGPT and this is (their) reply:
"To determine if the number of questions on the B4X forum has decreased after the release of ChatGPT, you would need to consult up-to-date sources or gather data from the forum's administrators. It's important to note that while AI language models like ChatGPT can assist users with various tasks, they are not direct competitors to specialized forums and communities that cater to specific programming languages or frameworks. These forums often provide more targeted and in-depth assistance for developers working with particular tools or technologies."