If text search is ever implemented, it should be limited to your home timeline/mentions only. Lack of full-text search on general content is intentional, due to negative social dynamics of it in other networks
@Gargron If I was the peeps at #DuckDuckGo I would jump into #Mastodon *now* and make a search engine for it. They could contribute to the community while also promote themselves, it would be a perfect win-win for them.