User talk:Om kumar thakur

July 2020
Hello, I'm User3749. I wanted to let you know that one or more of your recent contributions to DNA computing have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Teahouse. Thanks. User3749 (talk) 12:06, 6 July 2020 (UTC)

Please do not add inappropriate external links to Wikipedia. Wikipedia is not a collection of links, nor should it be used for advertising or promotion. Inappropriate links include, but are not limited to, links to personal websites, links to websites with which you are affiliated (whether as a link in article text, or a citation in an article), and links that attract visitors to a website or promote a product. See the external links guideline and spam guideline for further explanations. Because Wikipedia uses the nofollow attribute value, its external links are disregarded by most search engines. If you feel the link should be added to the page, please discuss it on the associated talk page rather than re-adding it.  MrOllie (talk) 13:12, 6 July 2020 (UTC)

Please stop adding inappropriate external links to Wikipedia, as you did with this edit to Angiography. It is considered spamming and Wikipedia is not a vehicle for advertising or promotion. Because Wikipedia uses nofollow tags, additions of links to Wikipedia will not alter search engine rankings. If you continue spamming, you may be blocked from editing Wikipedia. Thank you. Naypta ☺ &#124; ✉ talk page &#124; 14:11, 6 July 2020 (UTC)

You may be blocked from editing without further warning the next time you insert a spam link, as you did at Facial recognition system. Persistent spammers may have their websites blacklisted, preventing anyone from linking to them from all Wikimedia sites as well as potentially being penalized by search engines. MrOllie (talk) 14:15, 6 July 2020 (UTC)