accessing
profileImageUrl
	| userFeed |
	^ profileImageUrl ifNil: [ 
		userFeed := self rssFeed xmlDocument.
		(userFeed xpath: '//div[@class="error-panel"]') size = 1 ifTrue: [ ^ nil].
		profileImageUrl := ((self rssFeed xmlDocument xpath: '//image/url') stringValue copyReplaceAll: '%2F' with: '/') ]