While recently re-examining the Google Play Store policies, we took another look at the rules against keyword spam and what the company suggests for app descriptions. Developers are advised to stay away from classic spam techniques like repetitive keywords, exceedingly long descriptions, and unrelated keywords or references. Publishers will often use these tactics in an attempt to sneak their apps into unrelated search results. One of the most interesting of these recommendations comes at the tail end of the page where Google advises against referencing other apps you've published.
If there is one major downside to the custom development community, it's that the sheer volume of minor variations in custom ROMs and largely-borrowed development makes it difficult, if not impossible to find real, quality development. XDA aims to change this by creating Original Development forums. These special forums will be reserved for projects that adhere to a set of rules, not the least of which is being largely original work.