Capability and responsibility become conflated very easily. You start off as the superhero who can fix problems, but that gradually creates dependency.
1st year
'Thanks for your help finding that error that was holding us up.'
2nd year
'We are all finished now. Just sent it over to you for debugging.'
3rd year
'Hey we are all waiting on you to fix. Big deadline for big customer.' CC: management
4th year
Management: 'we need to talk a about the regular delays here. We have several teams waiting on you. Also your own code checkin's are much lower than theirs. Seems like you are only making changes to what others write.'
1st year
'Thanks for your help finding that error that was holding us up.'
2nd year
'We are all finished now. Just sent it over to you for debugging.'
3rd year
'Hey we are all waiting on you to fix. Big deadline for big customer.' CC: management
4th year
Management: 'we need to talk a about the regular delays here. We have several teams waiting on you. Also your own code checkin's are much lower than theirs. Seems like you are only making changes to what others write.'