Be careful about criticizing someone on spelling; especially if in the course of doing so you make a rather obvious and annoying grammatical error of you're own.
there Pronunciation[thair; unstressed ther]
–adverb
1. in or at that place (opposed to here): She is there now.
they're Pronunciation[thair; unstressed ther]
contraction of 'they are.'
their Pronunciation[thair; unstressed ther]
–pronoun
1. a form of the possessive case of they used as an attributive adjective, before a noun: their home; their rights as citizens; their departure for Rome.
2. (used after an indefinite singular antecedent in place of the definite masculine form his or the definite feminine form her): Someone left their book on the table. Did everyone bring their lunch?
And 'Shite' is a word in common usage in many parts of the world, Especially the UK and Ireland