Recently, there were some blogs about cheating in contests. And many users had a discussion about why they cheated, how they cheated, and so on. We spent too much time catching just a few "found" cheaters (the number of cheaters is much more than we found).

The cheaters are shameful. They broke the contest rules, and made us spend a lot of time finding him to maintain the fairness of these competitions. But they just thought gaining rating is fun, though the ratings weren't achieved through their strength. They thought of competitive programming as interesting games because they didn't parcitipate any offline competitions. They don't need this skill.

I saw some blogs on Luogu about problems in a running Codeforces contest before. However, the academic climate of Luogu was good. The users didn't give solutions to them who asked and they reported about the blogs to the admins. The admins finally deleted the blogs.

I think the academic climate is the most important thing of competitive programming. Cheating groups were cheating themselves. To maintain the fairness, we can just automatically ban / or send warnings to cheaters but not discuss (like AtCoder). We need to solve the problem from the root. I believe Codeforces is an upward programming community. Start with yourself, don't give solutions to other people is the best way (and report the cheating actions). Because cheaters can't be all found. "It's a road that leads into a swamp. And we may not get out of it."