I need it for indexing only not for the link juice.I'm not 100% sure, but I would say yes, and it doesn't matter if it's a nofollow link in my experience.
Even if the site are using something like: /outgoing.php?url=htttp:......
Google does still notice your site. But that doesn't mean it will give it more value, but it can find it for indexing.
Lot of factors.On what factors does recrawling of a page depends?
It can definitely have some impact on faster indexing, but that's only if you post on forums that allow these kinds of activities and that won't ban you for placing links from your site, so you first need to read guidelines before you start doing it. Also, even if this is something that will be allowed you to do, if you will get faster indexing depends on more different things, such as the quality of your blog and site in general, its authority, the value of the content you are producing, the validity of links you are placing, and so on. This can be just a one-step in the process, but it won't guarantee you best results just by doing it.If I create link of my blog post in a forum comment, will it cause faster indexing on my blog post?
If the forum is in high traffic and collects large number of active members, and the page of the forum are in quick google index, the links of blog you posted are more available for google index. At the same time, sure that the quality is great.If I create link of my blog post in a forum comment, will it cause faster indexing on my blog post?