Nah, probably not but it is hard to tell how large it is. If it gets another bang or if you crash it is more likely to fail there if it is a significant size. If it is just a ding it shouldn't be a problem at all. Email the dude selling it and ask how bad it looks in real life, and also find out if he has the seatpost, if not proceed with caution. As far as I know there are very few spares out there.
Nah, probably not but it is hard to tell how large it is. If it gets another bang or if you crash it is more likely to fail there if it is a significant size. If it is just a ding it shouldn't be a problem at all. Email the dude selling it and ask how bad it looks in real life, and also find out if he has the seatpost, if not proceed with caution. As far as I know there are very few spares out there.