SirRockNRolla says:
If people are against it then it's fine I won't
If you make the character and want him to level up with the rest of the group, run him as an NPC. Having an NPC in the party is fine, and is often helpful to provide story hooks for either bringing the party together or providing adventure motivation. But the key to running an NPC is to use the character as a supporting character, not a primary character. In other words, use the character to nudge the party in the right direction, but don't use him to drive the plot/conversations/etc.
On the other hand, here on GP you will likely end up running one or more PCs as NPCs because players get sick, drop out, or otherwise stop posting for periods of time. I've only run three games on the site, but every one of them has had players disappear and I've ended up running PCs as NPCs at least some of the time. Of the couple dozen games I've played on the site, this has been the norm (1). So even if you don't start out with a character to play, you'll likely end up with one or more sooner or later!
For myself as a GM, I make a loose policy known in advance with my players for posting frequency. I set the expectation that, if just one player is unable to post within 24 hours (my arbitrary posting frequency), I will run them as NPCs in order to not hold up the action. I invite my players to provide "default character behavior" for me to use as a guideline for such play. For the most part, however, I haven't had to do this. Either people post within 24 hours so we continue normally, a majority of players don't post within 24 hours so I don't continue, or the action doesn't
require action from that PC and we continue without it. But in every game I have also had players just drop out for extended periods - one person left the site without explanation, one kid had his internet privileges rescinded, one person has had family health issues that have eclipsed play on GP, and a personal friend of mine registered for the site, the game, and created/submitted a character and has never logged on again. In such cases I run the PC as an NPC until such time as I can phase out the character and then, if I feel that that many players are desirable, I invite others to take the place in the Games Tavern thread.
1 - Play-by-post works for many people because there's less time needed to fit into a schedule; each game only needs a few minutes a day. The trade-off, however, is that play-by-post is a
long commitment: you aren't playing a game in one day, one week, or even one month. It's more likely to be measured in seasons or even years. Since I joined last Fall, I've only completed two games - both brief one-shots, and both with periods of high activity, with multiple posts per day. That's clearly the exception; most games take much longer. Life happens, and circumstances change for people such that they can't manage to post for a few minutes a day per game. So over the course of a given game, GMs should expect that some player or another - at least one - is going to drop out, either just disappearing, or because of known life circumstances (moving, changing jobs, birth of a child, etc).