Follow or no follow my 2nd site

Follow or no follow my 2nd site
So, i have the site A which is a forum and i have site B which is a wiki, on different domains. Me and my members use really much a special bbcode to link to various articles of the wiki.

My question is, which would be better: having follow or no follow on my wiki domain? Having so many links to the wiki site makes me think that it would cause something with the seo go wrong.

Thanks in advance.

Hello,
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