Check how often it's used and whether we need to look for b/c there.
|Resolved||thiemowmde||T142940 Create client functionality for getting human readable wikitext from Wikibase statements|
|Resolved||hoo||T147591 Look at FORMAT_WIKI usages in the wbformatvalue API|
Looked at action=wbformatvalue logs from 2016-10-06 08:45:18 to 2016-10-06 19:40:21:
Total calls: 52364
Calls without generate parameter: 0 (which uses the defaul FORMAT_WIKI)
Calls with generate=text/x-wiki parameter: 0
Given these results, I conclude that we don't need to take API consumers into account when changing the output of FORMAT_WIKI.