1) The disappearance and no mention of Finn O'Connor (Sinead's younger brother) ... if he has 'gone to live with his dad' why was this not mentioned or stated?
As isn't he supposed to be a father to 'Amber Sharpe's baby' (the defunct family that got axed)...the producers could have explored this with Amber off screen i.e. him visiting the child or exploring the issue of teenage pregnancy and the effects on young fathers - which is not generally explored from the male perspective in soaps...
2) Hayley (the student in the wheelchair), whom left to go on maternity leave from the show, was pregnant (in the show) with Rhys or Josh's baby...this SL has totally been ignored and conveniently 'forgotten' why would a man just randomly forget they have a child? I have heard of fathers neglecting their children or not being involved but they do mention the fact they are fathers from time to time...don't they?
3) The 'disappearance' of Seth Costello...he left HO originally to go and live with Riley, when Riley left the first time with Bobby to play for some football team. But when Jacqui went to visit Riley there was no mention of Seth or whether he had gone to live with Jason and his dad in America or just plainly vanished like many other characters...
4) Where is Cindy's child? Was she in a boarding school or something? I cannot remember the explanation what Cindy said when she returned but just like other characters she does not mention her own child or the fact that she may have been in touch at all...maybe her and Rhys are really meant to be?
(Although I may have these queries I still enjoy the show...as of yet)