I think it depends on who is speaking: a team is always a plural, so if it's the team behind X, then you use 'we'; if you're speaking as an individual, you use 'I'. (This can get confusing for some projects, if you're speaking in both capacities while being the only team member.)
So it comes down to how much you want your site associated with you personally, versus having its own identity (and associated "team", even if it's just you on the team).
For hobby projects, I generally go with 'I'; for anything I'm asking for money in exchange for a service, I go with 'we'.
If you feel uncomfortable using 'we' instead of 'I', just file a C-corp and get a registered agent. Now there's two of you, and when you're speaking as the corporation, it's a 'we'. (I'd argue it's always a 'we' for the C-corp, though, because again, it's a team, and teams are always plural.)
Of course, I've been known to use language strangely, so make up your own style rules and go with them.
So it comes down to how much you want your site associated with you personally, versus having its own identity (and associated "team", even if it's just you on the team).
For hobby projects, I generally go with 'I'; for anything I'm asking for money in exchange for a service, I go with 'we'.
If you feel uncomfortable using 'we' instead of 'I', just file a C-corp and get a registered agent. Now there's two of you, and when you're speaking as the corporation, it's a 'we'. (I'd argue it's always a 'we' for the C-corp, though, because again, it's a team, and teams are always plural.)
Of course, I've been known to use language strangely, so make up your own style rules and go with them.