Very often they use radio, television, and newspapers to publish articles on various topics of pseudoscience.
Real scientists understand the limitations of general knowledge.
They sincerely acknowledge that many puzzles of nature are not yet understood. In the 1930s and 1940s some attempts were made in the former Soviet Union to end investigations in such important fields as genetics and cybernetics. When real scientists are active, they can expose pseudoscience. Fortunately, the Supreme Soviet Committee stopped this waste of money. In the 1990s the government of the Ukraine allocated much money to a man named Bovbalan for realization of his ideas to move clouds and cyclones, to cause rains in drought areas, and so on.