At translatewiki.net, we welcomed User:చక్రవర్తి. With a user page that is probably in the Telugu language, we do not know if this new person knows sufficient English to localise from English into his language..
We have a protocol for accepting new people, we welcome people and, we provide them with instructions. When these instructions are followed, we give our new localiser "translator" rights because we assume sufficient proficiency in English.
At translatewiki.net we welcome people who are proficient in English and know their language quite well. The first stop for many people is the localisation of MediaWiki but we hope to continually provide challenges :)