The problem with Reg Barclay is his obsessive compulsive disorder, which
prevents him from any social life (only Troi & the Doctor, a hologram, seem able to approach him, what is a few). Plus, he could end to endanger the crew, even
unconsciously because he doesn't know how and when to stop, when he is
persuaded to reach his goal or at least, to be on the good way. Trying too hard to do well can be dangerous for oneself and/or for others. But except that, I agree that Reg Barclay is a good guy.
prevents him from any social life (only Troi & the Doctor, a hologram, seem able to approach him, what is a few). Plus, he could end to endanger the crew, even
unconsciously because he doesn't know how and when to stop, when he is
persuaded to reach his goal or at least, to be on the good way. Trying too hard to do well can be dangerous for oneself and/or for others. But except that, I agree that Reg Barclay is a good guy.