A few weeks ago I saw an interesting post on Dzone about what you shouldn’t do in Python. (See the article here.)

This got me thinking about what features/types of code/practices should be avoided in ColdFusion.

Some are obvious - for example, not using deprecated code. Did you know that CFML Reference guide contains a list of deprecated code for both tags and functions? Also listed are obsolete tags and functions. These functions/tags won’t work at all in ColdFusion 8.

But what else would you add to this list? I do not want to turn this entry into a “bash CF” entry (obviously, I love ColdFusion!). If you don’t like a feature, I don’t want to hear about it as we all have features we don’t like. But what things would you caution developers against? Or at least warn them? What tags/functions throw a red flag in your mind when you see the code.
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Many moons ago, I reported on how you could write a template to parse your server.log file for slow page reports.

In case you didn’t know - the ColdFusion Administrator lets you log files that take too long to process. This setting is found in the Logging Settings page as seen in the following screen shot:

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