I've been submitting my new directory (http://www.predir.com) to about 150-200 directories a day (about 2 or 3 days now). Can this end up hurting it?
don't think it should...especially when not all directories will be approving you on the same day....some have larger backlogs than others.
With a new site you can get sandboxed, but you're probably going to be sndboxed anyways and at the end of the day when you emerge from that sandbox you might as well have a bunch of inbound links.
It is unnecessary to worry about that google will red flag your site. Some "gurus" who have this kind of theory. Well, did they ever show one solid example? I never saw one. There are many link submission service, most of them will submit hundreds of links at once. A few may submit at some intervals, but usually they charge more. The question is: will this make difference to search engine? I do not think so. Here are two facts: Every link directory has their own schedule for accepting 'free submission'. You link will NOT be accepted immediately after the submission. Most emails sent from link directories are confirmation emails. NOT acceptance emails. You will get more emails in the following weeks. When they will accept it? Really depends. Some are days, some weeks, some even months. It takes time for these link directories to accept your site. After your site is accepted, will search engine find your link immediately? Of course, NOT immediately. Depends on the sites, it takes time for SE to index your link on different link directories. Days, weeks, or even months, all are possible. Based on these 2 facts, the time for Search Engine to index the site is spreaded out, not in a 'short' time although the submission is done in one or two days. SE will not red flag your site. temp
The only problem I see is that you will have 300 new links on say 3 months and then you will have to create another 300 links on the next 3 months to keep a steady link grow. But you submitted to all directories so you will have to find another source of links.
hehehe he is thinking that directories are finite in number, which is probably true but since everyday a new directory is born, this isn't really a problem.