If the ISP makes unblocking the port that easy then I'd have no problem with it. My worst nightmare would be having to call the "Your call is important to us" recording to get in re-opened.
Ugh, I agree, especially considering the low quality Indian Tier One support SBC utilizes. Unblocking the port was simple enough, and they had it done three hours after I requested it. It really wasn't an issue.
The only problem I had with it was the way SBC promoted it to users. I didn't know that they'd blocked 25 until I noticed that none of my domains had received any emails for a few days. A quick post to broadbandreports.com revealed the reason, but SBC should have done a better job letting its users know what was about to happen. An EMAIL would have been nice!