casual revenue

基本解释

In this case, the Times seems to want both the traffic and advertising dollars from casual browsers as well as the subscription-driven revenue from the more serious readers.
《纽约时报》打的是这样的如意算盘：从那些偶尔来访的读者手中赚得点击流量费和广告费，以及从相对忠实的读者身上获得订阅费作为财政收入。

Mochi Ads aren't the sole source of revenue even for casual game developers.
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This is a valid point, but the problem is that this also allows big teams like AC Milan to take advantage of its large domestic and international fan base, and receive extra revenue based on casual fans who are not invested enough to follow the smaller teams.
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Drawing enough casual fans to the web to replace the lost revenue of declining track attendance is an uphill climb.
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